Or you could make a case for them

It's only a few bits of plastic at the end of the day.
The Intellect 1600 hardcase seem pretty good though a little expensive at £30+ these are the same or similar to the Vampire ones. I have seen them on ebay for half that price.
eZrun all the way for me, get the 25A one and you can run pretty much any sensorless micro motor on it.
I am testing some new 28mm dia. motors this week so watch out for a report soon.