Since I have been using a pump, I do a bg test fairly frequently which means doing one when I am out at a supermarket or walking around the shops. Often the cases supplied by the bg manufacturers are big and bulky and usually need to be opened up and laid flat on something so its not always easy to do a bg test discretely.
Can I suggest that you think about manufacturing cases that will accommodate different bg meters and will also enable a certain bg finger pricker to go along side it and then by putting a small amount of bg teststrips at the top in a very small container, diabetics would then be able to more or less do a bg test wherever they may be (more or less one handed). I use a mobile phone wallet which I have adapted to take my bg meter, finger pricker alongside, teststrips at the top and it works very well and when doing a bg test, it often looks as though I am using a mobile phone to send a text message and no one is really any the wiser.