Just want to give a shout out to the mash paddle that northern brewer sells. Dowel construction, a touch long, but it works great and really does a great job of breaking up dough balls. And it's sturdy - stir the mash like it owes you money, and there's no chance of it bending or breaking. Sure, you could make one too. But it's just sitting there, waiting for you to buy it... It's really a nice mash paddle.