Not so strange or innovative but, a couple materials I like are the synthetic polar bear (I think it's called Polybear?) and the Enrico Puglasi fibers. The syn PB is just poly yarn and a little flash that comes in "hanks". Not sure what the EP fibers are but they shed water very well, come in some nice colors and a pack of it should be enough to last a lifetime!
The syn pb makes great spinner wings too.....the EP fibers are a litle too soft for them.......Jason