I found a great website that scans in old time slides into digital files for extremely reasonable prices ($0.18-$0.26). The company also adjusts color, grain, sharpening, white balance and more for no extra charge. The website is: http://www.slidescanningpros.com/
Check it out!

ESJ Designs offer slide scanning for free. You can't get cheaper than that! They can then use you scanned slide for printing on canvas or acrylic.