Li Shenron
Legend
A Ziploc bag of pipe cleaners. I have about a dozen different colors of them. I like to twist them into rings and drop them around minis to mark conditions...black for Bane, white for Bless, yellow for light sources, red for Hex, green for Poisoned, etc. I wrap them around minis to indicate the character is tangled in vines or stuck in webs. I wrap them around two minis to indicate they are grappled. And so on.
That's brilliant. I want to figure out something similar for our games.