[DampRobot]

We've had frisbees slide on a lot of materials, both in prototyping and on the robot. We've had Frisbees sliding on aluminuim, powdercoated and unpowdercoated, polycarb, ABS and wood.

Probably the worst was the unfinished plywood we used in prototypes, but anything other than that worked fine. Of the materials we tested, the powdercoated aluminium in our final shooter was probably the "best" although ABS was pretty good and I'm sure HDPE would be even "better." The reality is that frisbees slide really well on a lot of materials. They're relatively hard plastic with not much contact area, so as long as the shooter surface isn't bumpy or sticky, they should slide pretty well.

Aluminuim (powdercoated if you can) or ABS are probably your best bets. I don't think there's any need to spring for teflon coated aluminium or HDPE or anything like that. You should be fine with a lot of materials, just be sure you or someone else has tested it before using it.