Invitations as advertisements for the Harry Potter Birthday Bash program. I've been convinced to change the address on my next batch to be specific to the book and page number in which I'll be leaving them, or the location (teen desk, DVD case, etc). I love this idea even if it'll be a bit more time consuming to keep up with. XD
This library had a party for the last Harry Potter book. I think it looks SO MUCH cooler than the one I attended at Barnes and Noble. Going to use a House Cup system as my "token economy." Ten points to me for using teacher jargon!