Airbay via Amazon offers its Airbay Liquid Chalk Markers 10-Pack for $11.92. Coupon code "UG58UQGE" cuts it to $8.34. Plus, Prime members bag free shipping. That's tied with our October mention and the lowest price we could find by about $6. They feature reversible bullet/chisel tips and are 100% water based. Deal ends May 31.

Update: The coupon has expired. The price has dropped to $7.99.