This is the correct answer. But we can do one shell and a tube by tearing a scallop off the back of the tube. With the front (still circular and structurally sound) you scrape everything off. The seashell can be used at the end to scrape out the tube .
Now just need to get the three seashell folks to adopt the tube shell.
I tossed Mint on a VM briefly and really disliked it. Specifically finding the terminal was painful. Did they bury it pretty deep or did I just overlook it?