Wow. $5 per 500 foot roll. That would make 50 F2D streamers, problem is one needs at least double weight crepe for that. People have been buying streamers from the Russians for EUR2 per streamer without string, so I'm jealous. In the US people have moved to the forestry tape - works well in the wet. Before that we were stripping plastic tablecloths with a bandsaw, which worked very well, too, too short for RC combat, though.
For string, check out McMaster Carr (
www.mcmaster.com).
Iskandar