Jeli
From PinataIsland.info, the Viva Piñata wiki
Ambassador: Jerry
The existence of a Yeti species of piñata called Jeli has been questioned since the PinataIsland.info episode guide was updated on September 23, 2006 with a description of an episode called "The Abominable Jeli".
Also worth noting is that since then the Jeli has been seen walking around Pinata Island, for example the episode Langston's Jameleon Cousins.
Animal: Yeti
Candy: Jelly