OK, so this is my first post...please excuse the rambling. I am making a birthday cake for a friends son. This is the first time I am charging and I have no idea what to ask for. I'm making a sheet cake to serve 20. Frosting will be blue buttercream with a RTK shark head on top. The shark will be covered in fondant with gumpaste teeth. And of course with Happy 7th Birthday...duh. As I said, the mom is a friend but not close or anything (she used to be a massage client of mine). Also she lives an hour away from me and I'm delivering the cake. I feel weird charging too much since we are friends and this is the first time I am charging. She saw pics of cakes I've done for family and asked if I could do one for her son. HELP!!