do you gus make your own or do you but it at the store?

For 3D figures, I make my own omitting the butter. I have tried to use the premade ones at the store, but they are a little soft.

I just used RKT for a Mickey Mouse cake for my daughter. I made my own but added way more rice krispies than I normally would to make it dense. Then I really pushed the RKT in a pan to make them even more compact. After an hour or so, I cut out the shapes I needed and it worked perfectly. I think the basic recipe is 10 oz of marshmellows with 4 T of butter, melt in a pan and add 6 c of RK (I used 8 c).

Duplicate post, please see other for additional answers

http://forum.cakecentral.com/cake-decorating-ftopict-581478-.html