Groupon offers an Aluminyze $35 Metal Photo Print Credit for $16, an Aluminyze $60 Metal Photo Print Credit for $28, or a Aluminyze $100 Metal Photo Print Credit for $40. That's at least $19 off and the first such deal 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. Deal expires September 23. The coupon will be valid for redemption until March 20, 2013.