Ebay offers Speedo Adult Dive MS Set for $12.21 (reg. $29.99) free shipping.

Product Description:
Ideal for recreational snorkeling, Speedo’s versatile Adult Expedition Mask and Snorkel Set puts comfort first and makes you ready for any underwater exploration. The mask features a convenient tight seal that keeps water out and an adjustable head strap for a customized, comfortable fit. Plus, a dry-top snorkel prevents water entry, even when submerged.