Since we are talking about calendars, I will ask a mildly related calendar server question. Is there a solution out there that would allow me to automatically p

Since we are talking about calendars, I will ask a mildly related calendar server question. Is there a solution out there that would allow me to automatically prefix events in calendars that are shared with me? For example, I see my girlfriend's calendar with an event called "Work". I don't want to think it applies to me, so I would like to see it as "Princess Peach: Work". Can I do this without hacking an existing CalDAV server to use as an intermediary? I did try a script that takes a URL to an iCal file and adds the desired prefix, then spits out a new iCal file. Alas Google Calendar has a years old issue where it has no way to force it to pull updates to iCal files with any reasonable frequency. And of course I want the solution to work on phones as well as desktop browsers so a Chrome extension is not a solution. Bonus points for a solution that would let me munge event names arbitrarily according to regex rules, and to combine multiple shared calendars into one.