Hey, these look kind of different and interesting... I spotted them on the international (English) site at Gmarket in Korea:
CROAD X6 104 Crystal Double-Injection Keycap[Click to zoom, then click "X" at lower right for full-size]
They're MX-compatible double-shot caps with Hangul (Korean) sublegends, in a variety of colors, encased in clear acrylic. And if I'm reading it right, each set of 104 caps is just $9.99 + shipping.
No, the font's not great. But the sublegends are cool, and at this price you could get three or four colours and mix them up however you pleased.
The transparent shell reminds me of re-legendable keys on POS boards—except they're not blank. :?)
