Option 1: I'm hoping I can get someone to draw a Severus' long-fingered hand in pose holding a small bottle of moonlight/moonshine. "Bottled Glory for Remus" test would be nice, too.
Option 2: If that doesn't trigger anything, I'd be very happy with an open book with Slytherin and Gryffindor bookmarks, the Slytherin on with tiny acid holes burned in it and the Gryffindor one with gnaw marks on it.
Many, many thanks to the Snupin artists who dazzle me every time I'm privileged to see their works!