1.) A freestanding drawer constructed of real wood that appears to have a truly functional purpose in the real world, as opposed to a plastic version that may fit nicely next to a toy kitchen. The height would be adjustable but ideally at a level that is at the tippy-toe reach of a toddler.
2.) A freestanding door and door jamb that sits in the middle of a room. A parent could adjust the resistance to control the level of noise made upon closure, which might range from silent to annoyingly loud slam.