First of all a big thank you to cakes unleashed for all your help with this, I couldnt have done it without your help! The bass drum is 1/3 round styrofoam discs ( 12 inch diameter). the bottom third is the styrofoam the rest is a layered cake cardboard, layered cake cardboard, til it reached the desired hieght. I carved the circle using a template cut to size to keep circle shape. I put support through out. The red edge is fondant the middle is buttercream. The mallots are rct covered with fodant. The music is sheet cake. Thought it turned out great. Thanks again to cc for all the help!