Harry Potter robes, sweaters, ties, the usual generic-student-cosplay stuff. A dummy book of Advanced Potion Making. I have assorted swag from cons like dog tags that say "Property of the Half-Blood Prince" and a pair-of-handcuffs keychain from an HP con called Azkatraz that was held in San Francisco.

Husband has two toy sonic screwdrivers, although tbh I bought them both for him ;)