I have a client who requested a cake for her daughter with purple guitars on it because the birthday girl will be getting a "Hannah Montana" purple guitar for her birthday. I found a guitar-shaped candy mold and will be using this to make the guitars.
My question is, how do I get the candy molds to stick to the fondant covered cake? I've never worked with candy molds before. Do I use a little bit of icing to make it stick?
I recommend you to use chocolate to stick them or you can use royal icing too,
Yes, chocolate or a little bit of icing. Or you could use the mold to make the decorations with fondant instead of chocolate. Then all you'll need is a little water to make them stick. Just dust the inside of the mold with a little cornstarch or powdered sugar and push your fondant in, use a knife to remove any excess so that the back is smooth, and pop out.
I don't know why I didn't think of that
I have used candy molds several times to mold fondant and it works great, just make sure to dust the mold with cornstarch. To get the fondant out I turn the mold over and whack it hard on the counter.