The plastic components needed to make this are not yet for sale, but a few rivets, a rivet gun, and a hammer work nicely together to make a primitive backscratcher. [Note the flattened sections near the tabs.]

Here, to join the tubes, I used an $11.00 rivet gun I bought from and $0.03, aluminum, large-flanged rivets ($12 for 500 rivets). Toothpicks and electrical tape could work fine as well.