Rick,
WHCC prints on Metal (usually aluminum) also I can print on metallic paper and have the print mounted (16x24 inch) for $50.00 or less. I have an Epson Stylus 1400 Photo printer that I can print up to 13 x 19 on, but I found with the cost of ink and paper it was less expensive in the long run to use a print service.
I also use WHCC to print greeting cards ($30-$40 for a pack of 25 cards with envelope) and while I usually only include one image on the card they are set up for four images (both covers and both inside pages).
The difference between Shutterfly and WHCC quality is incredible with WHCC blowing the competition away. Metal print price list
https://www.whcc.com/products/wall-d...prints#pricing