Similar results can be found on ebay, searching for:
21.1* stem
.83* stem
I'd have a hard time putting one of the sturdy, modular BMX stems on my Continental.
I'd love to find a stem that had good forward reach, without dropping down... more like a Nitto dirt drop.
This is the closest I've found, on ebay, from seller aaabicycle (no affiliation). My Continental is black, so this might not be the end of the world: