Does any one know how I can support my dreidel cake so that it stands on
its tip, or stand on a on a slant.
You can use plumbing supplies. Screw a flange into a heavy piece of mdf board and then attach appropriate pvc pipe. I found it was best to use a big box hardware store rather than a plumbing supply place. This you could angle.
There's a cake stand that has a hollow tube that inserts into whatever size plate you chose--it's the floating tiers kinda stand where each cake sits on it's own clear tube and they can all be at different heights.
So you could do the bottom of the toy in rice krispie treats or foam then place the cake board on that and put your cake part on top of there. All cleverly disguised to be a straight up down dreidel.