I found these on ebay. I wonder if they'd work?
http://www.ebay.com/itm/130605988237?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
http://www.ebay.com/itm/130605988237?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649