At the 2006 Alpine Tower Symposium I led a couple of Train-The-Trainer teambuilding games workshops. Some of the activities I teach require the use of PVC pipe and at the end of one workshop I demonstrated the awesomely fun marshmallow blowgun. I wrapped up the workshop by providing all the supplies needed to make marshmallow blowguns for all.
Now you can make a LASER GUIDED version of the marshmallow blowgun. Check out this video.