The stuff TGM sells sure looks like strips of Coroplast . Before I retired , I had occasion to order some for work , it was pretty cheap if I remember correctly . You can cut it with a sharp utility knife or a fine tooth saw . We got 2x4 foot sheets which , I suspect , is way overkill for your purposes . Anyway, check Amazon or Ebay for smaller pieces . Worth a shot.
Last edited by someoldguy; 04-23-2014 at 01:21 AM.
Reason: train of thought got derailed