You need just five pieces of PVC pipe.
- Two inch
- Five inch
- Seven inch
- Two 90* elbows
I'm sorry, I don't know where this particular target came from, but you can use or make any target. Three dimensional targets are fun, too. Set up paper towel and toilet paper tubes and knock them over with your marshmallow projectiles.
Super easy assembly, as shown above. Pop the marshmallow in the end of the 5" piece, which is also the end you blow in. I'd guess the elbow joints tend to slow your projectile down a bit. With the boys in this house, slowing them down is definitely a plus!
It wouldn't be a great project in this house unless some alterations were made to the design. "Just this once."