Hmm yeah i was wondering about one of them hamster, but i don't like how it's longer than an MM bridge, it doesn't have sring mutes so it seems a little pointless, though i could always chop it down and tidy it up a bit maybe.
EDIT: i could always buy one of those bridges you showed me there hamster and one of the newer 4 string OLPs that come with the more authentic bridges like this [url="http://cgi.ebay.co.uk/OLP-BASS-BASED-ON-STINGRAY-4-STRING-LICENCED-COPY_W0QQitemZ150267317046QQihZ005QQcategoryZ4713QQrdZ1QQssPageNameZWD1VQQcmdZViewItemQQ_trksidZp1638Q2em118Q2el1247"]one[/url] and swap the bridges over and sell the OLP on, of course the danger of that is falling in love with the OLP and losing some money... It is quite pretty