Search:

Here we go - I knew they were there somewhere....

http://straightrazorpalace.com/custom-builts-restorations/77213-pattern-welded-my-first-actual-custom-blades.html

Glen may still be up for it....

I have this vague impression that Glen (gssixgun) put together a very similar thing as what you are describing for someone a while back.

I'd imagine a really really breadknifed old razor may do...