Doesn't fit 100% with the rhythm but I tried to sing it and it kinda works.
On the twelfth day of Christmas Chicken Smoothie gave to me:
Twelve pretty items
Eleven holibombs
Ten Chicken Dollars
Nine reindeer bats
Eight good pound catches
Seven forum games
Six oekaki drawings
Fiiive wishlist thiiings
Four dressup challenges
Three re-releases
Two cool new species
And a cute unreleased orange tree