What to do with a 1 gallon bag of lemon peel?

I just harvested over 100 lemons from our tree. I juiced about 30 of them, and then canned the juice for later use. That left me with a huge amount of lemon peel. I used some to make candied lemon rind (http://thelunacafe.com/candied-lemon-peel/comment-page-1/#comment-1695) which is delicious, but very labor intensive (the filleting off the pith). Anyone have any other ideas on what to do with it? Is there any way to preserve the zest, or to harvest the lemon oil?