Thread: PulpLogic 1U Switch
It's a little awkward as they are 1U in height (not supported by modulargrid), but they exist...
Here's some cases that support the tiles:
http://erthenvar.com/store/lunchbox
http://www.ebay.com/itm/251306429860
You can also build your own:
http://erthenvar.com/store/eurodiy/casehardware