i think the only way to do that would probably be to like.. super glue a strap to it and even then im not certain it would work, i use a surface pro so then pen is very thin and smooth and unless i had one of those adjustable thingies like switch/wii controllers have i dont know if itd even help since itd have to have extra length to account to for the pen movement
i think the only way to do that would probably be to like.. super glue a strap to it and even then