REf Pen!by

patrick boateng & patrick mannion

in football, time is everything.referees have to manage player

behavior to ensure that the game is played fairly and appropriate

discipline is given out for foul play. multiple tools are used throughout

the game, including the whistle and pen.

what if we combined these to allow formore efficient officiating?

ref penpen + whistle

Pen Design

*whistle design based on file: http://grabcad.com/library/whistle--3