Perhaps could even be reutilized as one? I see it is a 50 USD off-the-self extruder for your DIY 3D printer. Add steppers with electronics, draw by hand some fixtures, add "vitamins" (nuts, bolts etc.) and and go.
Not really usable as an extruder because you need to be able to control extrusion amount precisely. At that price, there is definitely a DC gearmotor inside with absolutely no way to control position or speed.