I was looking at something I got. Which is a NT Cutter Mini. It's about 5" long.

I got a pack of 100 blades for $20, which is smaller than a pack of cigarettes.

I'm thinking testing steel might work better in a platform like this. Maybe make the blades a little thicker, say 2mm or so with a larger V saber grind or a flat V grind. Don't do the "break off" style blade. I don't know if you could do anything outside of a wharncliff blade style in this platform.
Pro's:
It would be easier to carry an extra steel with you.
You could choose your steel based on your anticipated tasks.
We would possibly save material on production (if producing these is possible).
Con's:
The platform will not be as strong.
It won't be able to really beat on the blades.
You won't get a really nice finished product. It is borderline "too cheap".
Due to variation, the parts might not work well together. Maybe the whole system has to be adjustable.
Please give me some input on why this would be a good idea or would be the worst idea ever. :)