Jeremy' 7th Birthday Cake

My current project is Jeremy's 7th Birthday cake.  He choose to go swimming for his party, and wants a swimming pool cake.  So far it is going okay.  I have the 11x13 sheet cake (Lemon) done and the Jello is setting.  Jeremy and I found some Lego people last night that seem to be a good size for the cake.  After class tonight I will have to figure out how to put it together.