Someone posted some incredibly good miniature reproductions of classic disks in the hobby Benchmark Hunter forum. It's a long thread, so scroll to the recent entries.
http://forums.groundspeak.com/GC/index.php?showtopic=335816&st=50&gopid=5621744&#entry5621744
They used the same 3D printing company as Norm Larson has mentioned, and then had the results cast in bronze.
I have a mini benchmark keychain fob from the Hoover Dam. You can pick these things up in the gift shop of many national monuments and also online.
Mark Mayer, post: 400834, member: 424 wrote: You can pick these things up in the gift shop
Yes, but that doesn't get you the collection of disk types he has.
Bill93, post: 400838, member: 87 wrote: ...that doesn't get you the collection of disk types he has.
The gift shop ones are made of some form of steel. Brass/bronze would be much nicer.
If you want one of his disc's, this is his store https://www.shapeways.com/shops/triangulation
Wow, that's 2 days wages in one hand......