Fireproof Decorations has me STUMPED!

Submitted to Community Chat

I need the communities input on this one, for sure! I'd like to make door decorations for our vacation in March. Our last trip, there were no rules about the decorations being fireproof. So spray painted cardboard, was cool. Well now we have to be safe :) no fireproof spray ( ?? ) allowed. What type of craft products, do you think would be safe? Any thoughts or suggestions, would be greatly appreciated!!!