I'm making a tool box cake for a boy's 5'th BD, and I'm going to use fondant to create the "wood box" toolbox, which will be applied to the cake. I was thinking about using MMF, but I need to cut out the tool box sides and allow them to harden before applying to the cake (they'll need to remain in an upright position). Does MMF dry hard like store-purchased?

I added wilton's gum tex to mine to help harden it when I made wood panels.

I use MMF panels a lot. Most recently on the castle cake in my pics. I just roll it out, cut to the size I need, wet BC a bit and just place on cake. I've never had an issue with slipping or being too soft.

I have messed around with a few MMF figures and other things, and have never had a problem with it.

If you're worried about the drying time, make it well in advance that way you can be sure that it's completely dry.

Thanks Everyone, I appreciate the advice. I like the gum tex suggestion, and since this is a "remote" cake, I'll certainly make everthing ahead of time and assemble locally. I made the MMF yesterday, and left out a small piece - which I rolled into a log - to dry. It's very firm this morning, but still slumps. We'll see what happens - fortunately I have enough time to play around.

Thanks again! Dan