Bread Crumbs Singed
Well singed runs away leaving trails of poison, why not turn them into bread crumbs? His whole new theme could be bread crumbs + candy from the folk tale. When he ults, candy and glitter or whatever spews around him, his W slow could look like a large peppermint candy etc. I don't have any concept art or anything cause I suck at art, but I just think this would suit his kit and play style.