I'm glad to see that the end of the movie series hasn't dampened the enthusiasm of the HP fans out there. The books will be read and re-read and cherished forever, mark my words.
Wear your house colors with a little more panache than the usual stripes.
The boy who lived! On your shelf! With your preserves!
Books are for reading, not eating! Silly bakers, don't you know that serious Harry Potter fans won't be able to bring themselves to harming these precious books?