Just something cheap and fun I thought people might be interested in. I pick these things up for about a quarter at yard sales,Auctions etc. and have some fun reworking them.

They make pretty good old carbon steel knives for very cheap.
Here is a before and after picture(I combined two pictures. Its the same knife) You just soak them in white vinegar to remove the rusk and grind them to your liking. Use water to keep the steel cool. They are hard to beat for a quarter.