I love these balloon ideas from an old Martha Stewart post!
Martha Stewart Kids, Volume 17 2005
Invite a few lofty friends to your bash. Some may say this bear, chick, and pig have inflated egos; that's probably because they're helium-filled balloons.
Cut features and legs out of tissue paper, which won't weigh down balloons; cut ears out of a lightweight paper that won't flop, such as vellum. Affix with double-sided tape (ears should have tabs). Click here for more Animal Party ideas.