Does armour made from a monster with resistance keep the resistance?
For example, a PC kills some Gricks and makes their skin into leather with his Leatherworker's kit.
The Grick's statblock says it has
Damage Resistance: Bludgeoning, Piercing, and Slashing From Nonmagical Attacks
Is it possible to create light armor with that resistance from tanned Grick leather?
If so, how do you calculate how complicated that process would be, and what it would cost in time and resources?