Maybe one of these similar products would be of interest:-
Under Desk Elliptical Machine, Mini Ellipse Leg Exerciser Electric Seated Pedal
Under Desk Elliptical Machine - Mini Electric Pedal Bike Exerciser Home & Office
Under Desk Elliptical Machine, Mini Ellipse Leg Exerciser Electric Seated Pedal
Under Desk Elliptical Machine - Mini Electric Pedal Bike Exerciser Home & Office