Get a 3/4 inch schedule 40 piece of pvc tube/pipe (lets say 5 feet long for now). Place a Nerf dart (medium size) in the end. Blow through the tube. Notice that it either went sailing quite a ways or hit something rather hard. Now load several Nerf darts into this tube (should be able to fit about 32 in a 5 foot tube.) O.k. blow through the tube now. I found with a couple of these tubes it takes about half a second to scatter (or lose) 64 darts across a 30 inch TV (we use a garden sprayer for a pressure source.)