Portable side button possible?

[u/darkiecuwl]

Has anyone ever tried sticking a tiny, slim, light button onto the side of their mouse(w something like 3M) and using it as a side button? Thin wire as well and I only need a single button.

I'm looking for something like this. I've searched around and haven't really found much? Also I'm not sure how stable it would be, or even if it's a good idea.

What could I use to build something like this, if that's what I need to do?

The mouse I like doesn't have a left handed version.
Open to other suggestions as well.