Thumb Score: +19 Walmart.com has Char-Griller Akorn Smokin Stone on sale for $20.80 when you select free store pickup. Thanks amademan78 Note: For use with Akorn Kamado grills, see the product pages for additional details. Must select store pickup for the extra discount via Walmart. Alternatively, Amazon.com has for Prime Members: Char-Griller Akorn Smokin Stone on sale for $21.22.