there was a whole whack of them on ebay a couple days (weeks?) ago, grey leaf-style pushbuttons- around 80 of them along with 20 or 30 each of light blue, blue, orange and white...not sure if they sold or not, but if you look up the auction, and email the seller/buyer, maybe they'd sell you some..:-)
so at least we know they *were* made at some time and are out there somewhere..

<edit>
here's the auction. you could email the seller or buyer and ask the seller if he has any more or see if the buyer would sell you some:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3211077416&category=13718hth,