Just throwing this idea out there, but once we have the dimensions for the pen, someone should make and sell an expansion card that has a clip for the pen. You’d have to print (or mold) it in a soft plastic or have spring steel to keep it durable. Maybe polypropylene or a hard-ish TPU.
Here’s a simple sketch of what I’m thinking about.
Maybe a drawer with a clip? You could store extra pen tips in the drawer!
That would be a possibility!
Magnetic attachment would also be very cool. I mean that wont be as secure, and you need to be careful with magnets and computers, but it would be my preferred solution. However, a clip holder would also be good, especially if it could be on a storage expansion card. In that way you are not giving up a USB C port for nothing.
I agree that a magnetic solution would be more elegant to look at, but I don’t think it would work if you want to put the laptop in a bag.
You could have the clip positioned such that in between the two (or maybe 3-4) clipping bits the USB-C port is still accessable.
maybe a storage card so it isn’t a wasted IO slot?
or, you could have a male usb-c connecter so it can charge while it is clipped in
Ooh, I think that’s the best idea so far.
it would be pretty breakable though, so I wouldn’t get my hopes up about the idea unless we could find a usb-c port with no retention force and then put it on a ribbon cable so if something pulled it away the USB-C charger would just pull out. (we could call it clipsafe 
)
Why not get one of those magnetic USB-C adapters, one end would be installed in the clip card, the other you just plug into the pen? It wouldn’t be enough on it’s own to hold the pen in place, but it would solve the snapping male end problem.
