I'm running an Indiegogo campaign to put my Mmintbox design into production. It's a molded plastic enclosure for your Arduino & LCD shield, with space for a 9V battery and an option for a small protoboard. Check it out!
like the box
where do you get the button tops?
The buttons are a single compression-molded silicone keypad, like your average TV remote. You can see the prototypes in this picture (I made them by casting silicone in a 3D printed mold):
Is there any way to still get these?
Have a look at