Integrate shift time into wristbands

Designing a wristband, leave a little white square, big enough to stamp in/write in the main shift day and hour, so that volunteers don't forget about it in extase of the burn.

This is easy to do and fun cause volunteers have something to brag about and remember after. Use a simple stamper (day, time) - 10 euro and UV reflective ink - 15 euro, stamp the shift at the gate.