The Headcrumbs mod for 1.7.10 adds new items that let you take the form of any mob, other players, Youtube celebs, and more.
What the mod adds:
-Vanilla mobs/animals heads (including horses)
-Blizz heads (mob from Thermal Expansion)
-Twilight Forrest mobs/animals heads
-Natura mobs heads (Imps, Heatscar Spiders, and Nitro Creepers)
-Thaumcraft mobs (Pretty much all of the ones that actually have a head)
-Lycanite’s Mobs heads
-Primitive Mobs heads
-Grimoire of Gaia heads
-Minecraft celebrities heads as dungeon loot
-All of the heads added by this mod are wearable!
-MOBS! Find your favourite modder/youtuber/streamer/friend as a mob in...