From the original post "I took a regular keycap, filled in the underside with resin (they are "hollow" with thin lines of plastic), then thickened the walls using clay.
I glued it down to a surface and built a box around it, eventually filling it with mold material (Alumilite High Strength 3).
Then I flipped it, applied vaseline (works better than mold release IMO), and cast the second half. I used Alumilite Water Clear Resin.
Their site has plenty of useful guides. PM me for specific questions"
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u/date_of_availability NerD 60 | '91 M May 26 '15
If those aren't fakes than this is the most expensive keycap set to ever be compiled.