Replacment Electric Knife Blades

Electric knife blade We've been struggling to find a good source for electric knife blades. Luckily the serrated blades on most electric knives last a very long time but when you need new electric knife blades it's almost impossible to find them.

We have occasionally found them on eBay, and Mr Twister sells replacement knife blades for their electric knives. Have any of you found a good source for replacement electric knife blades?