"When I kill a spider I get a player head that says "MHF_Spider's Head". It's only happening with spiders using HH 1.5.1 and Bukkit 1.6.4."

http://dev.bukkit.org/bukkit-plugins/headhunter/#c127

This is not fixable is it? The head must reflect the players name, which in this case is a the spider username? Or is it possible to rename a head but maintain what usernames skin it displays?

I have a fix for it actually. Set the 'owner name' of the SkullMetaData to the player's name (MHF_Spider's Head) and then set the displayName of the ItemMeta to 'Spider Head'. Should work, untested though.

Reclassifying as enhancement, since its functional as is, just misleading.

Okay, I thought there had to be a way to do it, I just didn't have the time to look into in great detail at the time of creating the issue. Whenever one of us has time to work on this just make sure to assign yourself to this so we don't do the same thing twice :)

Should be implemented. Haven't tested fully though.