Tagger, the lips are 1/8" polycarbonate. I traced a pattern and cut them with the bandsaw, then sanded the edges and drilled some holes. I'm hoping the holes help the epoxy grab better, you can peel it right off this stuff with your fingernails
! When I get the weighting right I will try and figure out a better(stronger) attachment method, but I'll burn that bridge when I come to it.