I like adding dumb systems to my games!!
If you jump in a special pot, not only will you go to the specific challenge room inside, but you'll also warp back to the room you found the pot in originally upon leaving! Basically, you have portable warp points!
Also, if you upgrade one item (wand), you can make its effects last forever (or until you manually deactivate it) so if you want, you can just carry around a prop that flies indefinitely, just in case you need it! And if you upgrade the ring, you can also store one carried item!
So in theory, you could carry around both one of these warp pots AND a flying prop, just in case. Or, you could make the pot levitate, and do both at once!