|Brad Simon of Straggletooth|
ChalkZone (2002-2008) - animated cartoon had an episode with a yellow yeti:
Aztec Wars (1999) - obscure PC game from Russia featuring an alternate reality with Aztecs conquering the world. The Chinese armies in the game employ yellow yetis. Phew, this was a tough one to track down a screenshot. *Pats self on back*
Famous Yeti Pizza. Their logo features a yellow yeti. The owners seem like nice folks, and they support libraries.