If you didn't have at least one of these toys as a kid, your childhood didn't count. Don't worry, here's your chance to make it up to yourself. And yes, they totally work.
When I was wee, we hung a bunch of strings crisscrossing the living room and hooked He-Man's hand over the strings and had him zipping through the sky! How badly do you miss your He-Man and She-Ra toys? As much as Screech up there? I doubt it.