I am attempting to make my first topsy turvy and it need to feed 15 ppl . Would a 6" round and 4" round look odd together and is it enough?

bumping it !!! Does anyone know ?

I personally believe an 8" and a 6" (or maybe even a 4") would look best. This way you would know that you had enough cake, yet still not have a lot left over. That's just my opinion, though, and I'm certainly not an expert!

I have no idea. I've never made a topsy turvy cake before. Just wanted to give you a bump!!

I'd try 3 layers for artistic reasons. Odd numbers are more pleasing to the eye. Leftover cake is NOT a problem! LOL!! An 8", 6" and 4" would give you the right look and wouldn't really be too much cake. Most regular layers cakes are two 8" or 9" layers. Go for it!

I made a small topsy turvy for 20 w/ an 8" and a 6", then topped it off w/ a mini bundt molded from RKT just to add heighth. The birthday girl loved the topper and kept it for herself.