The only way to find one is ebay, but the bad thing is that you'd have to get them from ebay.com.
If you buy one from there, try and ask the seller to devalue the item, as customs will charge you around £25 extra to reclaim the figure.
In prices, you'd be looking at around £50-£70, if you wanted a varaint one then you'd be looking at £70-£100.
Hope you get a good price anyways, and i never give up hope of finding one on ebay.co.uk.