Prolific Bulgarian Apple II enthusiast Plamen Vaysilov has produced another clone of a famous card, the ALF MC1. You can get your own kit (i.e. assembly required) via eBay for USD $60 ($51+$9 S/H).
I found this IIGS 4MB RAM card on eBay, and a subsequent search for the vendor turned up GGLabs, ‘Open Source Electronics from Silicon Valley.’ It appears to be a copy of the Applied Engineering GS-RAM III but it may only be a resemblance based on the type of RAM used (ZIP-20). More details (schematics, Gerbers, documentation) are available here.
For those of you who don’t follow my Twitter account, here’s an exceedingly rare Apple UniFile Twiggy drive to look (drool?) over. It’s up for auction on eBay, starting at USD $3,750 or with a buy it now option of $6,000. Bazinga.