The good thing about school holidays and weekends is the extended periods of time for the kids to create extensive and elaborate games. My daughter made these props for a spy game she was playing with her siblings. And it actually works! How creative. What ingenuity! (Yes, we did have rules surrounding this for safety).
My daughter made it by finding a bow shaped stick and using a section of elastic we had in the craft box. A stick made for the arrow. So simple really.
The arrow stick was light enough, so it floats through air.