So just get your crayons and take off the wrappers (it goes a lot faster if you use an exacto knife to cut the wrapper down the middle and then peel it off!) Then break or cut the crayons into pieces and put in the pan. I grouped the like colors together because I'm ocd about a lot of stuff but I've seen a lot of them done with the colors all mixed together and they looked great!
Have your oven preheated to around 250 and place the crayons in there for about 15 min or until they're all melted. Also another hint of advice, if use the silicone pan make sure you have a cookie sheet or something under it while its on the oven because when you get them it will be much easier...trust me, I didn't have a cookie sheet under the first batch and I barely got it out without spilling melted crayon everywhere!
I let it cool for awhile and you can even put them in the freezer to speed up the cooling process. Once they're cool just pop them out and you're ready to color!! Aren't they so cute! My son loved them!