I made this for my son's 2nd birthday and it was a bit of a disaster. I bought an uniced slab and jamroll and moulded my own cake based on a toy I had. I didn't realise the slab was uneven until I"d put it together and realised it was the base that was uneven. I didn't think to bulk it up with icing. Then I doubled my BC mix except that I accidentally quadrupled the butter and didn't realise until about 6 hours after I'd finished! To top it off, when I used gel writers on the side to do the little details, I walked away while it dried and it all ran down the cake!