Homemade Crayons Use pieces of old crayons. Remove paper place paper liners in muffin tins (small or large are fine). Put in 5 to 8 crayon pieces. You can either use the same color or different ones as it makes swirls! Bake at 200 to 225 degrees F for about 5 minutes until crayons are just melted. Watch often. Remove and let cool. Remove paper and you have "new" big round crayons to draw with! If you put too many crayons in the liner, they won't melt properly so don't overdo it and yet, if you use too few, they will be too thin and will break when pressure is applied to draw.