Done for my godson's first birthday! 6"/8"/10" cakes - the top and bottom tiers were vanilla, the middle tier was chocolate chip (have to have a chocolate chip cake if you're doing a cookie monster cake!). ALL buttercream - even Cookie Monster - tried my hand out at figure piping with him and was pleased with the results. Even though it's December - it's still 80 degree weather here in the Cayman Islands. Miniature chocolate chip cookies finish off the cake. TFL!