I really like the original electrical tape caddy, but I found it really only held 3M electrical tape properly. I needed something that held whatever cheap crap they decide to buy at work. So I designed this retaining ring. Now the hub on the Tape reel doesn't have to be 26mm. This goes with the electrical tape caddy. You'll have to download and print that for this to be useful.

I printed it the same as my working print for the tape caddy. Cheap generic PETG. 3 walls, 25% concentric infill, This makes it strong enough to be useful, and flexible enough to not break under some flexing. It took me a while to hit on these settings, I kept breaking the fingers off the tape caddy.