During the creator's commentary in Portal 2, Valve animator Richard Lord called the eye portion of lovable personality sphere Wheatley's design a physical impossibility. Cosplayer Furin's talking Wheatley puppet seems to have done well enough.
Trumpcard's Two Cents says they've found a promotional company that appears to be gearing up to start producing Vault Boy puppets. Perhaps these cute Fallout 3 guys are an offshoot of Penny Arcade's Vault 77 comic. Either way, I just want me a Vault Boy to yell at. [Tumpcard's Two Cents]