Paper towel dispenser key

I needed replacement keys for the paper towel dispensers at work, so I designed one and printed a few. It’s a very specific design, of course, but you can hopefully use it as a starting point if you need something similar.

For the strongest result, print it at a 45-degree angle. 
(I included the mouse in the photo for scale.)

The original design can be found here at Tinkercad