Groupon offers a Picture It On Canvas credit for an 8" x 10" Aluminum Print for $11.99, a 11" x 14" Aluminum Print for $18.99, a 16" x 20" Aluminum Print for $34.99, or a 20" x 30" Aluminum Print for $59.99. That's at least $57 off, as much as $190 off, and tied with our mention from three weeks ago as the best deal we've seen for metal prints. Shipping starts at $14.95, which is not charged until you redeem the voucher at Picture It On Canvas. The voucher expires October 30.