Bobbin holder & box

For holding bobbins of thread used for sewing.
Mostly for the semi-large ones, to go on top for easy access, but with ample space inside for more.
If you have many of the small ones (for underthread inside sewing machine for instance),
might want to also 3d-print some of [these bobbin holders](http://www.thingiverse.com/thing:38357).

Designed as a present, originally made for my mother for Christmas.
The lid can be flipped upside down, with the spikes going down into the box.
Then you ca