i've heard about puck board (the stuff they use around the edges of rinks). It's pretty cheap apperently, but I do not know how well it would work as a jib. try talking to your local rink about where you could get it..
Actuly, a decent lenth and width PVC $$$$. The easiest, free way to do it is if theres a construction business around (works best if you know someone who works there). they dont use the PVC's with out the ends (the weird bumpy part) witch is perfect for skiing. the just throw these out so your basicly doing them a favor by taking them. the companies have tons of sizes, and the worst is they make you pay 20$ for a 20ft PVC. its pretty much guaranteed free though. hope this helps! its a secret not too many people realise
one time tanner hall did 2 marijuana's -illadelphlife
"a friend took two marijuanas at a party and over dosed, then he turned gay and caught AIDS " - *TACO-DOG*
"a girl grabbed my balls once and it scared me" .YMR.