Walmart offers the Gold's Gym Circuit Trainer 36" Mini Trampoline Circuit Trainer, model no. 35-1626GG, for $23.09. Choose in-store pickup to dodge the $5.99 shipping fee. That's $2 under our June mention and the lowest price we've seen. (It's the best deal now by $15.) It features a polypropylene rebounding surface, and includes two resistance cords and an electronic monitor that measures time, calories, and number of jumps.