The Badge design requirements are as follows

PCB : 2 layer 8 mil minimum trace with and spacing

Size: No greater than 50m x 50m

Thickness: 1.6mm

Assembly: Single Side SMT (minimal PTH hand soldering if required under 10Pins)

BOM: <£10 inc. assembly @£0.03 pp

Features Required:

rounded corners

some method of attachment

only a computer required to reflash. (ie. no external FTDI type board)

Display

accessible inputs (ie. tac switch, joystick ect.)

optional onboard power attachments

optional sewable