If we're going to do Unexpected Companions again, we may as well try out different prestige classes, although I still vote for either an all Taffer or all Crafter campaign...or possibly both. A group of Taffer Crafters enjoying a drink at a bar after a long day at work and all hell breaks loose. They're forced to save the day with their mundane skills.
"If you have a problem, if no one else can help, and if you can find them, maybe you can hire... the T-Team."