Kevin Kohler, known on the internet as The Backyard Scientist, thinks that kids these days have become too soft in part because toys have become far less dangerous. They're also so boring! So Kohler gathered his friends and modified the toys to explode or reach dangerously high speeds.
Although Kohler doesn't attach razor blades so the snapping alligator game as the YouTube thumbnail implies, he does give the toy the snapping power of a spring-loaded rat trap. He and his friends also start fires inside a garage, which you should not try at home if you've been hoarding gasoline lately.
-via The Awesomer