Bad idea, (but understand motivation)
I watched with glee as a Father and group of boys built and fired a potato gun on our vacation resort in the Thousand Islands.When they turned it on the tour boat roaring offensively close to the swimming area of the island, my response was "Great!"But I'm an adult. And a potato is _not_ a harmless water balloon. A potato fired from such a gun at a boat moving at 20 miles per hour can produce serious damage, and, even more important, serious injury. So I had to ask the group to reconsider, and we then decided that letting the potato launched go missing after contolled use that first summer was the only responsible approach.DavidLady Lillie