Set of Numat's Trick Tubes (Patreon)

Wondrous item, uncommon

This drab pair of empty ceramic cylinders are magically linked. Each vessel is 3 inches in diameter and 1 foot tall. Placing an item inside one of the vessels and closing the lid will magically teleport it to the second tube, making a quiet whoosh sound when it does. A similarly quiet thud can be heard when receiving an item. A tube can’t send more than 2 pounds of material at a time and can’t be used to send a creature. Both vessels must be on the same plane of existence and have their lids closed in order for an item to be teleported between them. 

The great arcanist, Numat, first sent these handy tubes away with his students for them to send him their research and notes from the field. As he grew older, however, he would have them send sweets instead. Some of the older tubes may still have some crumbs in them.