Radio Shack has an illuminated pocket microscope that works well.
It goes from 25x to 150X (that is just a remembered guess) but it works great. (if you can find the tip of the stylus!
I use a piece of paper and have the edge next to the stylus, so I can find the edge and then move up to the stylus!
Otherwise you risk banging into the stylus when searching for it at over 100x