Decentkeyboards' IBM keycaps • Beautiful IBM Model M keycaps, with made to order customization available.
Gateron PBT keycaps • Gateron produced high quality Cherry MX compatible PBT keycaps in various colors, which were made available through groupbuys at places like Massdrop and geekhack.
Matt3o's Topre PBT spacebars • Although the Realforce and HHKB are excellent keyboards, one feature that has always been lacking is the prone-to-shine ABS Spacebar. Thanks to matt3o we got the first ever standard 6-unit Topre spacebar in PBT material, in different colours.
Round 5 • 7bit's most monumental keycap project, it took several years to get here, and boy was our patience rewarded! Where were you when Signature Plastics shipped?
SA Retro • SA Retro is a keycap set designed by matt3o, so you can relive the original Commodore 64 style.
And the Wingnut for Best keycaps 2015, as voted for by the members of deskthority, goes to...