The moose I looked at spilled candy out its bum when you lifted its tail. the candy was on a slope inside the belly of the moose, and was held in with a simple flap attached to a pivoting tail piece. If you held the tail up long enough all the candy would come out, although it would often jam and you'd have to shake it loose.
I wanted to make the same sort of thing, only with a slightly more complex mechanism that would dispense a small, measured amount of candy. I also thought it would be a lot more interesting and, uh, "realistic" if you pushed down the head to get it to "poop" as well.
I designed it for M&Ms or Reeces type candies which I figured would be less likely to jam. And why not make it a reindeer so it would fit the whole Santa/Christmas theme too.
With that list of goals, here's what I came up with.
My kids think it's HILARIOUS (they're all boys), but their mom just rolls her eyes at me because of all the jokes, sounds, and comments that now go along with the dispensing of candy.
Step 1: Material
There was quite a bit of trial and error involved with making this, but even so I've still got plenty of material left to make at least two or three more.