Just noticed that oneshare.com is now making available SGI Stock Certificates. Little pricey though...
(In case your curious, the idea behind oneshare is that you get one share of a given company's stock (from their list of companies, unfortunately), for the sake of getting a stock certificate from that company...you can do it on your own for less, but it's time consuming and painful; but oneshare charges $39 to do it for you...so it's a tradeoff....but having a stock certificate can be kinda cool..
Anyway, here's a link...
http://www.oneshare.com/exec4/stock.asp?frametype=0&sesID=&item_id=0&cat_id=1&company_id=256&for_whom=me&cmd=add&refresh=1
Cheers!