This is a simple casing for a 3V coin cell battery.
After printing insert wires through the holes, one for V and one for GND.
The wires inside will keep the battery inserted.
Two small holes for adding the optional switch (which has two nudges)
In the picture this coin cell battery holder is combined with a neopixel and attiny85
Used for the e-textile swatch exchange 2016 http://etextile-summercamp.org/swatch-exchange/tiny-knittings/
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