I just did a bonnet in 3m stuff from ebay and was shocked at how good it was! Unbelievable stuff really. Need to get it warm (proper warm!) and make sure there's a heat gun handy because if you stretch it too much, you can just fire the heat gun at it and it's memory takes it back to the form it was. Proper clever stuff.
http://www.ebay.co.uk/itm/261110306294?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
My bonnet wrapping skills leave a lot to be desired though...
Did you get the stuff with the little lines in the glue, so you can push the air out much easier.