I have a bride who wants a 5 tier cake. The bottom tier needs to be round, then square, then round and so on. Total servings isn't an issue because the whole bride's cake is styrofoam. (We're doing serving cakes from the kitchen.) The best option I come up with is 18 round on bottom, then 12" square, 10" round, 6" square, 5" round. My only issue with this is I can't find a 5" round styrofoam cake. Does anyone have a better idea? I'm open to anything!!

Thanks in advance for any help!

1. Some places will custom make the styrofoam in the size you want.
2. You can cut a dummy down to size with an electric wire hot knife.
3. You can make your own dummy with spray foam (Great Stuff) if you have a 5" pan or form to spray into.
4. You can use real cake for the top tier that they can save for their 1st anniversary.

I love your last suggestion of making the top tier real cake for the couple's first anniversary. I think I'd love that if I were this bride!

Is there a reason a 4" dummy can't be used?