I like making stuff out of poly-carb, cutting is straight-forward (like wood), bending is straight-forward with heat.  Worked well.  Seems to spook birds at one of my large bird-feeders versus the old plexi-glass the squirrels destroyed, but the squirrels haven't been able to do anything to this PC.  Almost like the poly-carb is a little more reflective than the dull-transparent look of plexi.