Kid and law's awakenings still seemingly follow the same rules as katakuri and doflamingo by being able to use your devil fruit ability out side your own body. Main difference being their devil fruits aren't actually physical substances like mochi or string
Kid with the magnet fruit can likely magnetize anyone (and anything hopefully) he wants either making whatever it is attract or repeal metal and the other things under his awakening
Law with the operation fruit and being a modification man (like luffy is a rubber man) can probably turn people themselves into their own mini rooms without having to actually cast one out. It can probably apply to inorganic stuff to but idk how that'd work. Law has one of if not the most abstract devil fruit abilities so its hard to really guess without seeing 🗿