I'd already mounted my power supply and control relays on a shelf above all the other components of ThinBot, but wanted a little more protection from spilled drinks. Besides, a dome would just sort of finish the look.
After a bit of shopping (we considerd the outer bowl from a salad spinner, and another from a microwave popcorn popper, but they were both translucent rather than transparent) I found a polycarbonate serving bowl that I could repurpose as a dome:
I then reassembled everything so