What a fun puzzle!

There is a plexiglass panel behind which is folded cash (or a gift card, or perhaps a key). You can see, but can you get it??

Uses a classic puzzle technique to release a locking mechanism that will allow the panel to be opened.

Level of Difficulty: Level 2 (but we have yet to have a customer at the desk be able to open it for the HUBBUB gift card inside!)