Grubby Candle Failure, New items on swap page

This is like the 5th time I've tried grubby candles, I've tried the wax method and modge podge, i give up it's way to messy and every time I try to put another layer on the first layer falls off! I let them cool in between lowered my wax temp nothing works for me. This is a picture of a popcorn tin sprayed with Rustoluem. like how this came out. New items added to swap page please check it out,