It would be nice to have access to the VIP Lounge Fortune Teller (the NPC buffs, at least) from the Daily Deeds panel. For clan members, I suppose just displaying the remaining counter would be good enough?
There is no GUI to add this, though, so must be added manually like this:
Close down mafia and edit the file GLOBAL_prefs.txt in settings/
Make a backup copy first! Also make sure your editor isn't set to word wrap.
Find the line that starts with dailyDeedsOptions= and add a comma and the custom deed to the end of the line. You can reorder the lines easily in mafia, once you restart it.