A Razor Blade-Covered Yo-Yo Is the Most Dangerous Toy Since Lawn Darts

We’re all guilty of performing stupid stunts as kids, but most of us tend to avoid risking life and limb as we grow older. YouTube’s Giaco Whatever has done just the opposite. Using his machining skills, he attached a bunch of razor blades to a high performance yo-yo, creating a toy that’s possibly even more dangerous…