I made the second batch in some glass dishes and a mold I found today at Goodwill.
The star mold didn't work at all. I couldn't get the crayon out without breaking it.
I melted them at 250 for 25 minutes. I can't figure out why other people's crayons seem to melt so much faster.
I think I made these a little too big, a thinner disk would be nicer. But look how cute they are packaged like this: