I have seen this activity on several blogs this summer and have been wanting to give it a try!
My first thought was to use the really cute ice cube tray that I found at the Dollar Tree. I previously used it for our ice cube painting activity. After filling the entire tray with broken crayons, my husband walked in the kitchen and questioned me about using an "ice cube tray" in the oven. My response, "Sure, it'll work...I think...right?? It looks like my larger silicon muffin pan, so it should be fine...right?" Not wanting to take the chance, I decided not to use it. However, I am curious to know if it would have been okay to use, so if you know, please let me know.
I transferred all the broken crayons to the flower muffin pan. To melt crayons, preheat oven to 225 degrees and warm crayons for about 10 minutes.