Strat-O-Sphere Ages 13+ Make red, green and yellow balls change places in a narrow tube! Your audience will be speechless as you then make the red ball disappear from the joker box and reappear in the tube. $125.00.......... Silk Cabby and Frame - Mini AGE 13+ $84.95 Change Bag AGE 12+ $36.00 Swallowing Sword AGE 9+ $24.95 Strat-O-Sphere AGE 13+ $125.00