Draconic Diorama
While you carry the diorama, you have _advantage_ on _saving throws_ against Frightful Presence.
A successful DC 13 Arcana or Nature check reveals the skeleton is an actual dragon skeleton that has been shrunk to fit inside the box.
**Curse.** While carrying the cursed diorama you are compelled to amass more wealth. As long as you are compelled, you must succeed on a DC 13 Charisma _saving throw_ to willingly part with the diorama, even temporarily.