Here are the two color groups of crayons, for the two different containers.
Before melting the crayon wax I sprayed the inside of the containers and the drinking straws with mold release. I specifically didn't spray the little "platformy" part of the deodorant bottle, because I want the crayon to stick to this base. The type of mold release that I bought specifies letting the mold dry before using it. After everything was dry I screwed the platform/base thing back into the container and slipped the drinking straw over the threaded rod. This is something that I wouldn't have thought about, but was suggested by the website above, and I have to say seems like a really good idea. Crayon wax likes to stick to things, apparently.
Then I melted the crayons in a pot of boiling water. If you are one of those people who own a mircrowave, that might be an easier way to melt crayons. This method made the crayons on the bottom melt into soup, and the crayons on top fuse into a solid block that was melting resistant. I had planned on just letting the crayons sit and disturbing them as little as possible so that there might be some swirly pattern left in the "MEGA CRAYON" but I am just not that patient, it turns out. Also I had to keep the water pretty much at a rolling boil. When I did the second batch of crayons I put the lid on the pot and that seemed to help them melt more quickly.
Here is the hot wax in the container, which I promptly and impatiently put into the freezer.
As the wax cooled a bubble appeared, which I could theoretically try to fill with more wax (I did, actually on the second crayon) but by the time I noticed it I had already switched over to the blue green crayons. When the container felt cool I pulled the straw out, and voila! MEGA CRAYON is born.
Ragnarson was very into the big crayon for about 5 minutes. "WHERE is my BIG crayon MOMMA!??" After throughly covering a piece of paper with red scribbles, he realized that he could use the cover of the container to scrape shreds of crayon off onto the floor, which was a huge improvement over using his fingernails.