There are many variants of kouki/altezza taillights that appear on ebay. They all come from various taiwanese factories and are rebranded not only by ebayers but also by jdm companies.
Another variant with 2 round pieces:
http://cgi.ebay.com/ebaymotors/ws/eB...category=33716, even if it's not alike
given that what you're looking for is incredibly ugly, i think i'll stop "helping" now