Keys of Nowhere these keys can be used to open any locked door as long there is nothing but empty space on the other side (not even air.)

Ring of Tune makes silly music.

Bag of Many Bags this ordinary-looking bag spits out any object put into it. however, you may reach in to the bag and once for day take out another Bag of Many Bags, a Bag of Many Bags spits out other Bags of Many Bags if you attempt to put them in, but not the ones that are created daily.