I saw this and was pretty sure it would be a hit.
I had collected a couple of paper towel rolls when I remembered we had these in the garage. A big box and corner protectors from the birdcage we recently purchased.
After a few minutes with some scissors and duct tape, I had this.
I had to angle the carboard pieces up a little. Since they were just right angles, the ball wouldn't stay in them as it rolled from one level to the next (like it would if they were the rounded tube shapes)
Yep, it's a winner. (sorry it's sideways--I always forget I have to have my camera the right way up)
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