Kits.
If you want a nice looking knife to carry about - a knife on the fancy side, like some of the beauties in this thread, you are going to want good steel and finer materials for the handle, etc.
Are you, then, going to throw that knife?
If you just want to make practice knives - just for throwing practice - then you can order a six foot piece of 2.5 X 1/8" or 5/32" low carbon steel for less than $30 - get some 1/4" leather, make up some rivets and make four of your own. For practice, they are very functional, can be properly balanced. They don't need to hold an edge since they are purpose built.
Not pretty enough to carry but they sure do last when throwing.
Pete