Coaster Lenticular - Harry Potter (Map)
The OMGC says...
This Harry Potter lenticular design changes as it moves. The design features the password to the famous Marauder's Map - "I solemnly swear that I am up to no good" - and some footprints indicating the students and teachers of Hogwarts walking around the school. When it moves, the coaster transforms to reveal Moony, Wormtail, Padfoot & Prong's Marauder's Map.
Dimensions: 10 (w) x 10 (h) x 0.5 (d) cm
Composition: Cork backed