When I saw the little HF that Chris posted I decided that I wanted to try it. I had no HF tools so I made some. This little thing is 2 1/4" by 2 1/4" with no finish and sanded to 600 grit. Oh, its sasafrass (I think).
Philip the wall thickness isn't to uniform, maybe from about 1/4" to 3/8". I was trying to get the tools shaped better so I kept regrinding the tools and reshaping them and adjusting the bevels. As you can tell I wasn't worried about the form either.