Beato's Instant Hoard

You place a container, such as a backpack, a chest, or even an article of clothing if it has pockets, and a dragon scale, next to a collection of items or currency worth at least 500 gp. The spell leaves a mark in draconic on the container, inscribing your name into it and consuming the dragon scale. Anytime thereafter, you can use your action to access your collection through the container by reaching inside so long as you are on the same plane of existence as your collection.

Objects placed into the container are added to your collection, a creature other than you who reaches into the container takes 1d6 force damage and is pushed 5 feet away. If the container is destroyed the spell ends and the connection is severed.