I was working at home the other day, and I could not find the cap for my Kaweco Sport Steel fountain pen. Look in the desk, under the desk, under the couch, in the couch etc.

Finally found it hanging off the back side of part on my iPad Pro that holds and charges my Apple Pencil.

Then I go hmmm and stuck the entire pen there.

Funny enough it is the only metal pen that it works with however. Because all the other metal pens I have are brass or aluminum.

Image of metal Kaweco attached to iPad