Just curious about what your project is... is it top secret? If not, share with me and I might be able to help out. I know at work we have lots scraps material from our manufactyuring of different displays and whatnot... some materials include ABS, acrylic, polycarbonate, and sintra (extended PVC). I know lots of that is in the 1/8" range and if you need just a square foot, I could probably get it for you. Ron sounds like he probably has a little more experience and so I would understand if you head his way... but if I can help, don't hesitate to ask. Good luck with your project.
Coach... aka Randy!