Also a first time cake...I've done a couple of "shaped" cakes, but never with fondant, and never a truck. They wanted the cake shaped like a truck (from 1/4 sheet cake), top of the cake in orange fondant, with "mud splatter" along the bottom. I ran out of white fondant (and was running out of time) so I ended up doing some detail in buttercream. The mud splatter ended up being super-thinned chocolate buttercream, because I wasn't sure what else to use. This is the end result... : /