Most of us have seen marble run kits. There’s lots of mix and match ramps and things that hook together to channel a rolling marble from the top to the bottom. Often they look far more interesting than they really are, the bits don’t quite fit together quite right, they’re rickety and really not quite as much fun as they should be.
Here’s a new twist on that idea that might just alleviate most of those complaints. I’m 30-mumble, and I can say with complete honesty, “Do want!”