One part Dawn dishwashing liquid mixed with two parts HYDROGEN PEROXIDE. Add baking soda for scrubbing help. Use laundry brush to work into the stain. Supposed to actually take yellow armpit stains out of white shirts!
"Break off in case of sparkly vampires" - I think this would be even more effective without the "Sparkly" part. But In all seriousness this sign is racist against vampires. A hate sign is what this is!