Re: ice dubbing
Do as Joni suggested and put it in a loop, don't forget to pick it out a little also for a really buggy look.
You can use it on various nymphs, wet flies, or buggers too, depending on the size and type of bug, you may also want to trim it down a little bit.
Give it a try, experiment a little and you will really like spinning dubbing loops.
*Comments posted above are only my opinion. I may be right....eh, I'm probably wrong. Take 'em for what they're worth.*