Hey, Guys:
Sorry for getting to this thread so late--been traveling overseas and a bit out of the loop...
The description of the process posted by Pegleg was spot on--thank you, Pegleg! The exact size of the box isn't really important, since people also vary in size. Also, the beauty of this approach is that you can scrounge materials instead of buying stuff. I've had really good luck with scrounging boxes from a variety of sources on a regular basis and squirreling them away. When I need targets, I pull one out (I store them flat to avoid clutter), tape or glue it back into its "full" form, and then start cutting and taping to create the head.
Balloon placement can be whatever you want it to be. The traditional approach is to put it in the head for failure-to-stop/Mozambique drills or center chest for standard COM hits. I came up with the funny-animal-balloon idea to better represent the spinal cord and make shooting the target to the ground more challenging and realistic. If you prefer the standard round balloon, you should also play with cutting a hole near the bottom of the box for pelvic shots. For these, I don’t center the balloon, since shots to the bowl of the pelvis don’t stop reliably. Put it off-center to represent the iliac arch and head of the femur and “shoot pockets.”
Putting a T-shirt over these targets—especially a dark one—helps a lot since it prevents you from seeing where the balloons are placed. You also can’t see your hits and adjust fire based on groups.
As for video up on this site from the show, we’ve been pushing for that for a long time without success. When I get back in the loop and have some time, I’ll try to make a stand-alone video that documents the process.
Stay safe,
Mike