Making Adobe Brick Molds?

I've been trying to find information on how to make them.  I'd like to make a mold that would be similar to standard cinder blocks. I need help figuring out how to make them. I want to pour emulsified asphalt fortified adobe into them.

just make a wood box out of 2X4's.  Inside dimensions are traditionally 10" by 14", but you can make them any size you want (careful, they are heavy).

You can also do what we did, and make the bricks right on the wall, so you only lift material once (look at the T-bricks):
http://www.velacreations.com/adobe.html