Ok, so I made the title more titillating than the subject matter really is, but this is what I do every spring or when moderately bored. Lots of fun for young and old.

I buy different colored marshmallow peeps and stick them into the microwave. Also found that bamboo toothpicks work better.

Here is an example of what other people do. Didn't the yellow one just have an explosion of some kind??

YouTube - PEEP WARS