I'd like to introduce a new PC into a party, but allow him some gear and give the party a portable hole. I like the idea of a character preparing an emergency kit and stashing it in a portable hole and keeping the portable hole with them in secret, in case they're captured.
In D&D 5e, would it be possible to fold and stitch a portable hole as a patch onto a pair of trousers, similar to a patch from a Robe of Useful Items, without being damaged? If not, is it possible with any particular consequences? The intent is to remove and activate in emergencies, like an emergency kit with replacement clothes, weapons etc. Like the burn bag in The Bourne Identity, so the portable hole does not have to be usable in its stowed state.