Walmart offers the Wen Cast Iron Bench Grinder Pedestal Stand for $27.98. Order via pickup to cut the price to $19.01. That's the lowest price we could find by $8. It measures 31.5" in height and features a 9.9" x 12.4" top to fit most bench grinders.

Update: The price has dropped to $17.88 after in-store pickup discount.