Air Foil Ring

Was playing around with the skirt from a job I recently completed, and realized I had come upon something wonderfully entertaining.
Behold the air foil ring! It's a very simple toy that plays off of physics to quickly glide through the air. Hours of fun so far for me and a very simple, low cost print that doesn't even require relatively decent quality.
The inherit springiness of this print also makes it quite resilient which is a very great plus!
I will also work on a couple of possible design tweaks to possibly enhance the flight properties.
Update 1: I've added in a few different extra designs. The first is simply a little larger in diameter, the second has added finger notches, and the third with notches but a slightly longer shape.
I'll update on how these changes effect the flight and ease of use and look forward to your feedback as well!
Update 3: I'm not sure if this has any real benefit but I've added two new versions that have fins that _might_ add to the forward