I bent my own acrylic into a "u" type shape. I just sandwiched it on a workbench with plywood and clamps, then used a heatgun(slow) and a torch (fast!) and let gravity do the rest. after it had made a 90 degree bend i let it cool, flipped it over, and did the same to the other side. then i used a router table to make teeth but a dremel will work too just not as clean. HTH