what has worked for me is taking a pillow case or somthing like it. we us snake bags that we picked up at an expo recently.
soak it down then ring it out so it is just damp not soaked.
put your bp in the bag then secure it so it can not get out. put it and the bag back in your enclosure on the hot side. leave the bp in their for about 20 to 30 min. then check it should have rubed the stuck shed off. if not put back in and check again latter. hope this helps 
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2.1.0 ball python (aragorn, frodo, arwen)
1.0.0 columbian boa (squiggles)
1.0.0 rat snake (alabastered)
0.1.0 corn snake (baby)
3.2.0 cats (rockie, bs, brownie, lerrado, kole)
1.3.0 kids (dilyen, dakota, chyanne, sierra)
Brian n Chrissy
"snakes are kind of like potato chips, you cant have just one"