I have tried just about everything to sharper heads, blades, knives and such, but I never could get hair to jump off my arm like this method does. I know its just me, cuz I know all the other ways work well. I showed this to all the guys at deer camp, and everybody used it.
som used it to sharpen thumderhead type blades, They all said it was awsom! And where could they buy one? lol. you can't lol some more. I think I bought the plastic knife sharpener at KMart 3.00 bucks.
I duded mine up a bit. I used oak for the block and rounded the corners off with router then painted it wrinkle black. It looks like molded plastic.
Just had brainstorm...... You could use piece of one of them synthetic cutting boards maybe?
Maybe my new business?

? Duh! Now I can dump my singing career.