have to check with Ronin on how he makes his. You can use a small diameter pipe about 12 inches long, find a dowel that is a tight fit, place a nickel in the end and lay that down with the pipe straight up in the air, add a gram or two of hash slide the pipe, slide in the dowel and smack the shit out of it with a hammer! Boom! Ghetto hash pucks! Just make sure the dowel slides into the pipe, tight, but not too tight!
Metal on metal would be better than wood, now that I think about it!