Amazon offers its Prime members the Gaiam Tai Chi Beginner Kit, model no. 199-2051, for $12.21 with free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise it adds $8.74.) That's the lowest total price we could find by $8. The kit includes a weighted ball, DVD, and booklet featuring excerpts from David Dorian-Ross' book Exercising the Soul.