The Deal Custom stone slate photo print from PrinterPix. Choose between two sizes:$14.99 for an 8"x6" ($34.99 list price)$24.99 for a 12"x12" ($59.99 list price) After purchasing this deal, you will need to visit the website listed on your Groupon voucher to complete redemption. See voucher for more information. PrinterPix Custom Stone Slate Photo Print. Transform favorite family portraits, vacation pics, pet photos, and camera-phone shots into customized keepsakes. PrinterPix's stone slates can feature any photo of your choosing. All you need to do is upload a photo, customize its appearance, and wait for it to arrive in the mail.