You can do your own prints on Aluminum using " J Path " or " straight through " Photo printers.
You can purchase the product from a local or web reseller, and do your own prints, if you're set up with above described printer, instead of paying $$$ to a photo lab.
Be aware that you will need to make "custom printer profiles" , so you'll need "printer profiling package".
There are 5 different finishes to choose from : Matte Silver - Brushed Silver - Satin Silver - Satin Gold - Satin White
The Manufacturer recommends to protect the sheet by either using lamination or a spray coating
Here's the link :
AlumaJet, Ink Jet Printable Aluminum
By the way, this is a good " exclusive ", and/or " high end ", and /or " added value " product to offer your customers.
I use 2 of their other products to " Laser engrave " Black and White photos on Aluminum, using a CO2 Laser. Amazing results....