My hometown library, the amazing Salt Lake City Public Library, had a book trailer competition for teens earlier this year. While the deadline for entries has long passed, I just love the puppet Fault in Our Stars trailer they used as their call for entries on YouTube.
You can view all the competition entries here.
For more fun puppet videos from the SLCPL, see their Earl Vids with spokes-puppet Earl E. Literacy. He gets some pretty good author interviews!