Better Heat Gun
I'm sure it's not as cute and was a little more spendy, but I just use my "industrial" heat gun meant for shop use and removing latex paint. I think it's a Wagner? I own it because I use it to smooth the tops of the candles I've made. On high it will certainly burn the paper. I keep it set up on a non-stick cookie sheet because the barrel gets quite hot. That said, my 11 y.o. is responsible enough to use it well.