I have a Sony's Digital Paper DPT-RP1 and it's great. Unfortunately, Its stylus tip seems to be prone to breaking in halves, as documented in multiple forum posts, as well as the multiple answers to this question.
When the break happened, the first part of the tip got totally stuck within the stylus (there is a kind of latch mechanism to hold it in place) and I couldn't get it out.
The distance from the outside of the stylus to the broken part is about 2cm.
I tried to use a needle to nudge it out to no avail. I guess it's tightly snatched in place by the mechanism around, and it's really long.
Is there any way to get it out?