Found a pretty good price on 1" X 1/8" plastic discs.
http://www.ebay.com/itm/160946985166?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649Buy clicking on his other products link, he has other sizes too. The 1" size was in packs of 100 pcs.
Also found acrylic rods in 1/8" - 3/16" and 1/4". 5 pcs. X 11-7/8" long for each size.
http://www.ebay.com/itm/251163792135?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649I ordered the 1" discs and a pack of each size of rod. Gonna be way more than I need, but I can't resist a bargain.

I have a heat gun with a very small nozzle for shrinking heat shrink tubing in tight places. On high setting it should be plenty hot enough to bend the rod without using an open flame.