For the two for the crew challenge I thought about what were some important tools that are used on the ISS. I found the hammer, wrench, screwdriver, and pen. I thought which two of these four would be best to combine, the answer: a pen and any other tool. Because of this I made a multi tool with detachable heads that also functions as a pen holder. While you are screwing something in you may need to quickly jot a note down, so simply flip the tool around and you can write. This tool comes with three different heads, with all printing at once.