I made this spider man cake this week for a little boy who lives down the street. The cake is white with buttercream icing. The building was made out of cake and coated with buttercream. I let the buttercream crust then used a paint brush and "cake paint". The bricks were added to the cake using a piping bag and black icing.
To secure the Spider-man candle to the top of the building I screwed a hole in the bottom of the candy and hot glued in a cookie stick. the Spider-man was then pushed down into place. He stayed just fine.