Briven's Hidey Hole

You touch an inorganic nonmagical object that has or can create a hole of no larger than one square inch in area (such as a sheath, glove, or string). A small temporary demiplane is bound to the object for the duration. This demiplane can hold one weapon or held object (like a wand or quarterstaff) that can fit at least 2/3 of the way into the hole, regardless of weight. The object gains 1 lb of weight when bound to this demiplane, and gains no more weight, regardless of what is stored within it. The demiplane remains bound to the object, regardless if the hole doesn't exist anymore, and can be accessed if the hole is recreated.

As a bonus action, any creature may store an object within the hole. An object whose handle sticks out of the hole magically disappears within the hole when let go of.

While an object is stored within the hole, it can be retrieved by a creature placing their hand over the hole (as if holding the object within), thinking of the object stored within, and pulling it out as if it were in a sheath. This also takes a bonus action.

At the end of the duration, or when the enchanted object is destroyed, if the demiplane isn't empty, its contents spill out of the hole in an unoccupied space within 5 feet of the hole. If no space exists, the item is instead shunted into the Astral Plane.

At higher levels. This effect lasts longer when cast at higher spell levels. When cast using a spell slot of level 2, the duration increases to 8 hours. When cast using a spell slot of level 3, the duration increases to 24 hours.

Additionally if this spell is cast on the same object using a spell slot of level 4 every day for five days in succession, the object becomes magical and the spell lasts indefinitely after the fifth cast. The item can be used as if cast at level 3 during those 5 days. If cast using a spell slot of level 5 or greater, the enchantment takes only one cast to become permanent. When cast at spell levels 4 or 5, the components are consumed each time the spell is cast.

Placing an item permanently enchanted this way inside an extradimensional space created by a bag of holding, handy haversack, or similar item instantly destroys both items and opens a gate to the Astral Plane. The gate originates where the one item was placed inside the other. Any creature within 10 feet of the gate is sucked through it to a random location on the Astral Plane. The gate then closes. The gate is one-way only and can't be reopened.