Kohl's offers the Gaiam Balance Ball Chair in Black, model no. 610-6002RTL, for $99.99. In-cart, it drops to $89.99. Coupon codes "MOMSDAY10" and "ALLDAISIES" cut it to $67.99. With $8.95 for shipping, that's the lowest total price we could find by $3, although we saw it for $21 less in January. It features a 300-lb. weight capacity and includes a removable 52cm balance ball, adjustable support bar, easy-glide casters, and an air pump. Deal ends May 8.