I've been thinking of making my own for a while now, and have used one around the house for a long time, but most were $1 or so. I found they bent kinda easy too, even the $10 Cold Steel one that replaced the 20 year old model. To me, machete is Latin for sheet metal with an edge, so my plan is to just put an edge on some appropriate thickness sheet metal, 2" wide or so, 12" blade, 1/8" thick, 5-6 inch handle. They may have been made different a long time ago, but to me, when you get into primary bevels and distal tapers, it becomes more complicated than a machete, though admittedly it may work better.