@lot_jockey, @Jazzmaster: Yes, I had similar thoughts earlier in the thread:
I wish Marten from now on would spend less time at CoD, and concentrate on other activities.
After the Marten/Dora breakup, he was distancing himself from CoD for a while, and met Padma. Unfortunately, he soon was back to his old habits.
Should Marten bring Pintsize along to the party as a wing-guy? Admittedly, it is a huge risk to take, and probably ends up in anal jokes. Still, I feel a bit sorry for Pintsize, as Marten never involves him in anything outside the apartment. Probably because of past experiences. It has probably been discussed before, but AnthroPC companions seem not to be very common in the QC universe. Only Marigold, Hanners, and Marten of the main characters have one. Therefore, he could help Marten getting noticed, and act as ice-breaker (if only he can behave himself).
EDIT: And Marigold and Hanners are rather special cases.
EDIT 2: Clinton has a "semi-autonomous" artificial hand, but I am not sure if it counts (or if Clinton counts). Anyway, he (the hand) is not very talkative.