The slingshot forum had these peashooters on a while back. They are very nice and much fun. I could not find whole peas at any stores so I then ordered the ones for 6mm and use airsoft BB. I think they would be easy to make, but I decided to support a Vet by buying from him. I actually took out some flies this spring and summer sitting on my porch. Skeeters also. Fairly close range within 10 feet. Surprised me to be able to hit them.