Any ideas for how to accomplish a working waterfall on a tier cake?
You could "pave" your waterfall path with chocolate to protect the cake underneath, but for the mechanical part, I have no idea.
build a cake around something like this -- go to:
then do a search for
Lighted 11.8" Stainless Steel Spillway Color Changing Garden Outdoor Waterfall
my ipad copy and paste only copies the main address not the exact page -- so two steps there ~
or just find whatever waterfall you like and build the cake around it