I used an insulating foam to create the cupcakes. This 16 ounce spray can of insulating foam I picked up at Home Depot was under five dollars. It made a LOT of cupcakes.
I only filled the cupcake liners half way... you can see in this photo below how much the Styrofoam rises with the 24 hours that I let them set up.
I ended up having to cut off the tops down to become "cupcake" size. If your going to try making some, I would recommend filling them only 1/4 high in the cupcake liners. It will look like a squiggly mess when you first spray it in the liners, but when it rises, it will be a perfectly smooth.
I also had to cut off the bottom of each cupcake as the Styrofoam created a round bottom to each cupcake making them wobble when set down. For the frosting I used "Patch-n-Paint" lightweight spackle. I used pink paint in this cup below. The first photo shows the cupcakes that I mixed straight red paint into the white spackle thinking it would turn pink... it didn't, it looks more like a salmon. Whatever~
Here are a couple of tips if your wanting to try making some.
- Again, only fill each cupcake liner 1/4 the way up.
- Don't touch the foam with your hands--- that's some sticky stuff!
- Once you start spraying the insulating foam you have to either use it all up or toss it as it won't let you use it over several days.
- Use a piece of double sided sticky tape to hold your cupcake liners in a cupcake pan. The foam will make it expand right out of the cupcake pan leaving you with a "hot mess."
- If your needing to wash off any tools, do it outside with a hose and not down your pipes.
- Make sure you tell your "dumb" friends that they cannot eat them. *wink*