I made this heart cus I wanted to try making melted crayon art. Well last week I got my self a mini-high heat glue gun. I found some old crayons. I used crayola and roseart and some old cheap crayons. Well I was almost done and then I heard a pop and I saw ether a spark or a very little flame from me tripping a circuit breaker. So I was wondering if I need to not leave it running too long when I have crayon in it or if I need to make sure that the area where the heat area in the glue gun is more clear to keep it coolish.