Curtains with an open/close animation
Radio controlled toy vehicles
Water bowls for pets
Freezers - keeps food fresh 2-3 times longer, but food must be defrosted before use, so...
An updated Microwave with a defrost feature
Portable cooler that actually stores prepared food, like sandwiches or salads and/or keep fish fresh during trips
Built-in appliances
Of the things already mentioned:
DOORBELLS!
Juicer/Blender
Toaster
Porch Swing/glider
Board games/Jenga
Windows with an open/close animation
Upright Piano
Smaller telescope
Picnic Basket/Blanket
Hammocks
Shaving tools
Kites
