Groupon offers an $35 Aluminyze Metal Photo Print Credit for $16, a 60 Aluminyze Metal Photo Print Credit for $28, or a $100 Aluminyze Metal Photo Print Credit for $40. That's at least $19 off, tied with our January mention, and only the fourth credit offer we've seen from Aluminyze, which prints uploaded photos onto aluminum. An 8"x10" aluminum photo costs $34.95, an 11"x14" photo costs $59.95, and a 16"x20" photo costs $99.95. Shipping for these prints starts at $5.95 and is not included in the credit. The coupon will be valid for redemption until July 31, 2013.