Throwing Ring

You can scale it to any size you wish, it works well with abs and other more flexible plastics. It should glide very well and straight much better then a Frisbee.

Quick tip when printing with abs try using white wood glue for outdoor use on the glass bed, an awesome bed adhesion in my opinion. Sticks well when hot and the part pops off when cool and its is a durable surface too so it lasts long.