This deal has ended.
Update: this is now out of stock online. Back in stock after selling out repeatedly, Walmart has the K'NEX Big Value Tub for just $10, matching the all-time low. Originally $21.88, this 325-piece set includes K'NEX bricks and a storage tub with infinite building possibilities. Shipping is $3.97, site-to-store pickup is free, and sales tax is charged in most states.