Bobblehead - Lockpick
This is the only bobblehead with a head that never bobbles while you are in your house since the former owner of the bobblehead presumably took out the spring to pick a lock. (PC user has a Lockpick Bobblehead that bobbles normally- this may be something that was patched, console-only, or misinformation. XBox 360 user found the Lockpick Bobblehead does indeed bobble.) It does bobble on the desk before you pick it up (watch the Youtube video).