Through careful misdirection, even the largest items can be hidden.
A 1 Gift Stash Power used by Sasaki Nobutoshi, created by TheSuperChrisb.
Sasaki Nobutoshi has taken on many roles over the course of his career. He's been an actor, a dancer, a magician, and more. One of the first tricks that he decided to master was slight-of-hand. His skills were invaluable in scenes where quick costume changes were needed, and he'd even be able to baffle audiences with his ability to switch between his masks on-stage in the blink of an eye.
The one hurdle that he could never overcome was the limitations of physical space. At the end of the day, a palmed item would eventually need to be deposited somewhere... After the mission in the mall, Sasaki began to realize that his palmed items would spontaneously disappear without so much as a sound. After a day of practice, he realized that he could swap between the items that have disappeared and ones in front of him. From there, it only took practice and experimentation to develop a stash of useful tools that he would always have available.
You may hold up to 20 Objects in your stash, each no larger than something which Fits Inside A Messenger Bag (10 liters).
Storing or withdrawing items from your Stash requires an Action but has no Exertion cost.
Containers of multiple objects may be stashed only if the objects within are generally packaged together. For instance, you may stash a clip full of bullets, a medical kit full of medical supplies, or a box of crackers, but you cannot stash a backpack full of miscellaneous equipment.