Almost all of the sources listed in this guide are available as bounty targets. I started making a list of bounties that I've turned in which aren't listed as bounties in this guide, but it was too long to list! Just know what you're looking for (write it down) and follow this proceedure:
1) New game. Open map quickly by pressing 'm' on the loading screen.
2) Right click the map to zoom out. Hover over each act. Read the names of the bounties. Do any of them match your notes? GO! If not, new game.
Behistun Rune - Look for bounties on Yeth and Shondar in A2. Alcarmus is a quick map and these two bounties are very common. The A1 locations for this item require so much walking that it isn't worth it compared to how common these two bounties are.
Bloody Pincer - Crabs / Scorpitox / Severclaw? New game. Each are medium-rare, but combined are common. Maybe 1:3 games.
Borns Key / Shard of Einsteig Plate - There's a bounty on a different member of the "Haunted" achievement almost every game.
Captured Nightmare - both Grimnight the Soulless and Haures are bounties. (Pretty much everyone is.)
*Captured Soul - You MUST have a bounty on Aloysius the Ghastly. Farming this otherwise is insane. (And the bounty is uncommon.)
Cultist Blood - despite the Grand Cultist Inquisitor in A1, it is again faster to do bounties in Alcarnus. Both Jhorum and Murdos are common.
Defiled Doll - all 3 listed sources are available as bounties. (One is an event.) Demonika is the fastest bounty and the most common.
Element of Celerity - look for "Mange", "Dreadclaw", or "Forlorn Farm". All very common. The rest take too long. (Scavenged Scabbard is dumb.)
Glowing Ore - Sartor, "Demon Souls", and Magrethar are all possible bounty targets. Magrethar is inside the realmwalker, which can be annoying to find. All 3 are kind of rare as a bounty though, so take them if you see them.
*Hilt of the Silver Wolf - fortunately Gnawbone and Growlfang are both potential bounty targets. Unfortunately, the constraints on the bounty types seem to force them out more often then not. This was one of the last items I found. Despite the help from the bounty system farming these can be as bad as farming a Whimshire mat.
Living Flame - I've seen Sho'Thall and Rau'Kye as bounty targets. Malfeas probably is one too.
Quaking Vial - the mallet lords are bounties in 4/5 games. Easy.
Sydru Bone - definitely "The Carrion Farm" in A1. See my advice on the White Oak Splinter below, as this event is another one of the large tiles in the Fields of Misery. (And very common! You'll be sick of it by the time you get your White Oak Splinter.)
Shattered Core - look for bounties on Rockgut and Thrum.
Skull of Raylend - all of Bholen, Garangug, and Gorog are available as bounties. Combined, they are somewhat common.
*Wooden Stake - definitely find bounties on Killian Damort (act 1) and Belagg Pierceflesh (act 3). They are the only sources and running their maps without a bounty is insane.
** either Whimsyshire mat - take the waypoint from the Old Ruins and run. This is the worst besides maybe Chiltara.
** White Oak Splinter - you must get this from the Old Man. I have not seen "The Secluded Grove" as a bounty target and I've done a lot A1 bounties. But do this one in adventure mode anyway. First, if you see "The Cursed Grove" as a bounty then remake the game. Next if you're still in the game then run southwest from the FoM waypoint. Often you'll run directly into the Carrion Farm, Forlorn Farm, Defiled Crypt, "goat clan employee meeting", or "random swamp" large tile. If you hit the outside wall of the map first then walk southeast along the wall before northwest. If you don't find the large tile quickly, you're doing it wrong. If your large tile isn't the either grove type then open your map. Since the FoM isn't random you should have a good idea of where the other large tile is based on the portion of the map you've already already explored. Portal directly back to the WP in the center and run to it. Good luck. Unlike Chiltara the RNG isn't against you (or bugged), and unlike Whimsyshire, the walk isn't long.
1
Almost all of the sources listed in this guide are available as bounty targets. I started making a list of bounties that I've turned in which aren't listed as bounties in this guide, but it was too long to list! Just know what you're looking for (write it down) and follow this proceedure:
1) New game. Open map quickly by pressing 'm' on the loading screen.
2) Right click the map to zoom out. Hover over each act. Read the names of the bounties. Do any of them match your notes? GO! If not, new game.
Behistun Rune - Look for bounties on Yeth and Shondar in A2. Alcarmus is a quick map and these two bounties are very common. The A1 locations for this item require so much walking that it isn't worth it compared to how common these two bounties are.
Bloody Pincer - Crabs / Scorpitox / Severclaw? New game. Each are medium-rare, but combined are common. Maybe 1:3 games.
Borns Key / Shard of Einsteig Plate - There's a bounty on a different member of the "Haunted" achievement almost every game.
Captured Nightmare - both Grimnight the Soulless and Haures are bounties. (Pretty much everyone is.)
*Captured Soul - You MUST have a bounty on Aloysius the Ghastly. Farming this otherwise is insane. (And the bounty is uncommon.)
Cultist Blood - despite the Grand Cultist Inquisitor in A1, it is again faster to do bounties in Alcarnus. Both Jhorum and Murdos are common.
Defiled Doll - all 3 listed sources are available as bounties. (One is an event.) Demonika is the fastest bounty and the most common.
Element of Celerity - look for "Mange", "Dreadclaw", or "Forlorn Farm". All very common. The rest take too long. (Scavenged Scabbard is dumb.)
Glowing Ore - Sartor, "Demon Souls", and Magrethar are all possible bounty targets. Magrethar is inside the realmwalker, which can be annoying to find. All 3 are kind of rare as a bounty though, so take them if you see them.
*Hilt of the Silver Wolf - fortunately Gnawbone and Growlfang are both potential bounty targets. Unfortunately, the constraints on the bounty types seem to force them out more often then not. This was one of the last items I found. Despite the help from the bounty system farming these can be as bad as farming a Whimshire mat.
Living Flame - I've seen Sho'Thall and Rau'Kye as bounty targets. Malfeas probably is one too.
Quaking Vial - the mallet lords are bounties in 4/5 games. Easy.
Sydru Bone - definitely "The Carrion Farm" in A1. See my advice on the White Oak Splinter below, as this event is another one of the large tiles in the Fields of Misery. (And very common! You'll be sick of it by the time you get your White Oak Splinter.)
Shattered Core - look for bounties on Rockgut and Thrum.
Skull of Raylend - all of Bholen, Garangug, and Gorog are available as bounties. Combined, they are somewhat common.
*Wooden Stake - definitely find bounties on Killian Damort (act 1) and Belagg Pierceflesh (act 3). They are the only sources and running their maps without a bounty is insane.
** either Whimsyshire mat - take the waypoint from the Old Ruins and run. This is the worst besides maybe Chiltara.
** White Oak Splinter - you must get this from the Old Man. I have not seen "The Secluded Grove" as a bounty target and I've done a lot A1 bounties. But do this one in adventure mode anyway. First, if you see "The Cursed Grove" as a bounty then remake the game. Next if you're still in the game then run southwest from the FoM waypoint. Often you'll run directly into the Carrion Farm, Forlorn Farm, Defiled Crypt, "goat clan employee meeting", or "random swamp" large tile. If you hit the outside wall of the map first then walk southeast along the wall before northwest. If you don't find the large tile quickly, you're doing it wrong. If your large tile isn't the either grove type then open your map. Since the FoM isn't random you should have a good idea of where the other large tile is based on the portion of the map you've already already explored. Portal directly back to the WP in the center and run to it. Good luck. Unlike Chiltara the RNG isn't against you (or bugged), and unlike Whimsyshire, the walk isn't long.
* annoying to farm
** stupid annoying to farm