You can still buy ALPS printers, but you need to do so from Alps directly.
You can also create Decals using Ink-jet printers or Colour Laser printers, but here you will need WHITE decal paper designed for Ink-Jet/Laser printers as well as a can of coating material.
Do a search on Google for "Ink Jet Decal" or similar and MANY sites will pop up.
Here is one source, but shop around:
http://www.decalpaper.com/