Both the bride & groom were fans so I figured this was a good choice for my brother & his bride. Someone in the kitchen spilled something on the drum because it was wet & getting sticky. I covered two 8" cakes separately, then stacked them & put a band around the middle & decorated. The green was done with piping gel & icing mixed. The piping gel alone didn't show up. This was done with a lot of help from my cake partner in crime, Andreea! I made a mold out of a Star Trek keychain but it didn't work completely so I just used the top. You can probably make your own cheaper by searching the net.