i picked up some black toe clips from American Cyclery here in SF for $5. they had a box full of stuff they were trying to get rid of. They are made by Prisma. American might still have some more, but i know they were selling a bunch at our last veloswap, so not sure. give them a ring. 415.664.4545 (they have a fixed parts online site as well). I also found this link online: http://secure.netonline.nl/ssl/renai...ivals.asp?t=42 ...
again not sure if the ones they have on here are black or not. They have the ALE ones that jitensha mentions above. ALE INOX?
The design is one i haven't dealt with before... the clip is metal, but the base that attaches to the pedal is plastic:
http://www.dynagroove.com/users/fabian/misc/clip1.jpg
http://www.dynagroove.com/users/fabian/misc/clip2.jpg

cheers