These are contractions for interbreeding I find amusing:
female donkey + male horse = Hinny
female lion + male tiger = Tigon
female horse + male zebra = Zorse
female donkey + male zebra = Zonkey
female shetland pony + male zebra = Zetland
bison bull + female cow = Beefalo
female llama + male camel = Cama
swan + goose = Swoose
sheep + goat = Shoat (or Geep)

Geep!  But the thing I find disturbing is Beefalo.  Is that the only animal named specifically for the product it becomes?