Lovely Pet

Lovely Pet is the name given to a knockoff Doraemon windup by an unknown company.

The windup resembles a cat lying on all fours, with a translucent ball in its grasp. The cats have doraemon's face, with a propeller, a tail you'd expect to see on aircraft attached to its back, and the back of the cat's head is translucent, featuring a figure of a person without a face. It seems only the figure's hair was painted on.

The propeller, tail, and body of the cat are covered in stickers, some of which feature Doraemon, himself.

I'm not completely sure, but these may have been inspired by the existence of the Solaemon, a solar-powered Doraemon car which also had mini DIY kits sold, so people could setup their own mini solar-powered version.