I've made a couple sets with ghost jade g10, if you look around at knife supply sites (USA Knife Maker, Texas Knife supply, etc...) you might be able to find some thin enough.
Also, not sure what you think of it but I was recently introduced to
TeroTuf and I talked with the owner of the company (and bought a few sheets of it, but too thick for razors) and he said they stock pretty much any thickness 1/16" and higher, I'm sure you could get some 1/8" sheets from him, lots of colors to pick from.
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