If your D&D miniatures are marching on an outdoor map, the chances are extraordinarily high that you will see some boulder clusters on or near the path. What lurks behind those rock piles is of course a different Blog entry entirely.
Woodland Scenics wrote the book on rock molds. They have a slew of options. Ben’s favorite is the boulder mold or C1232 Boulders 5×7 Mold to be exact. This rock collection mold spits out a ton different pieces. And if you want to get fancy on your paint job, snag a toothbrush (but not your wifey’s) and drop a little blood spatter here and there.
The mold does have a few sticky spots to deal with when popping the final rocks out but sometimes you just have to bear down. So while rocks may seem silly, sometimes it’s the smaller elements on a game mat really help bring the whole encounter together.