I believe the Rigid Laminate Also known as Traffolyte or Formica
see web page for pic and details

http://www.suregrave.com/rigid-laminate.html

Material: Multi-layered Hight Pressure Laminate
Finish: Gloss
Sheet size: 1220 x 1220mm, 1220 x 610mm
Thickness: (3 ply) 1/16", 1/8", some 5 ply
Uses: Interor Signs
Cutter type: Rotating carbide
Cutter depth: No less than .012"
Fabrication: Saws, Drills and Bevels
Other features: Suitable for double-sided engraving

regards
wayne

You may consider using a template and a 3 flute following (more flutes, better finish) bit with a router......

If you have the ability, you can clamp several pieces together and do them all at one time if your following bit is deep enough.

Cut the piece close to size, clamp or fasten to the jig then route to final size.

Create the template then use the following bit to create copies.

Hope this helps....