One of the neatest training devices is a simple box of sand. You make a spear hand and thrust downward. As time passes, you get deeper and deeper, and you learn how to be ore intense and demand that extra inch out of yourself.
Interesting, this is a method that is supposed to be used for sharpening knives. If you want a real sharp knife, theory goes, you thrust knife down, and the sand whittles away at the edge.
Mind you, I have not played with this, so use at your own risk. And let me know if your knife gets damaged. I’ll put the results in ablog.
Anyway, your hand won’t get damaged by thrusting it into a bucket of sand. As a matter of fact, the fingers will become able to stand impact, your spearhand will start to shine, and you will have martial arts weapon of unusual intent.
Of course, your hand might look a little gnarly, but that’s okay. Just hold up your hand and put a crazed expression on your face and nobody is going to want to fight you. Grin.
Have a great day, and if you want some great tips on toughening the hand, specifically how to have the hardeat punch, check out the book I’ve written. It is called The Punch, and it is at Monster Martial Arts.