Just in case anyone wonders how I made the little cheesecake to coordinate with Ellie's costume, here's a picture timeline. The cheesecake itself was a Jell-O No Bake, so that was easy-peasy. I combined two boxes worth so I would have enough to fill a larger pan. (I also doubled the crust, but wish I hadn't as it turned out really thick.)
I used a spatula and then the back of a spoon to smooth the filling into each section. I let it set up for about half an hour in the fridge before removing the inner rings, then smoothed over the cracks again with a spatula.
Then when it is cut into individual pieces for serving, ta-da! Candy Corn!
Thanks to Pinterest for the inspiration!