you get some really good distance if you throw it like a (american) football, managed to clear a couple city blocks once, thrown on a hot dry day from a high floor at school...
Because I am unsafe, I started making them from aluminum cans with the top/bottom cut off. Some strips of duct tape along one of the edges balances it (and so defines your leading edge).
The right wrist action was needed but you could send them sailing across an auditorium to clatter against the far wall.
you get some really good distance if you throw it like a (american) football, managed to clear a couple city blocks once, thrown on a hot dry day from a high floor at school...