Hi, I am making a Michael Jackson head cake. I carved a piece of styrofoam, but I want better details. I was thinking adding rkt and/or modeling chocolate. Then I was going to cover that in fondant. I am wondering how I would get the rkt's to stay attached...toothpicks? and if I use modeling chocolate, will it melt under the fondant in heat and humidity? The cake will be placed outside at a pool party!!! Thanks, Chanda