A few minutes after this pic was taken, this cake could go in the "cake disasters" folder! Top two cans in back fell off and took about 6 of the half cans on the back with them. Customer wanted a cake to look like this for her husband's birthday. I tried very hard to find a picture of one someone had done and couldn't find one. I know now why no one would want to attempt this. It was a learning experience though. I made a 6 in square and a 4 in square cake for the bottom two tiers so that it would be more stable. I baked cakes in soda cans and then cut them in half lengthwise and decorated them. I stood them up all around the cake and put the four whole cans on top. It looked great till I tried to slide it into a box; that's when the two back cans on top took a nose dive. I managed to redecorate the half cans that fell off and got them stuck back on, but the two top cans that fell off were irreparable, so the top only had two cans on it. Customers absolutely flipped over it though! They were so impressed. Bottom tier was chocolate, middle was white and top cans were marble. All buttercream except for the gold tops, they were fondant brushed with gold piping gel. Every can was freehand decorated with stiff buttercream.