"This came up in last night's game: one of my players wants to get a pigeon familiar, with all of the D&D-associated benefits, such as sharing senses and such. I'm inclined to leave it as an Aspect, but we can't really decide which of his current Aspects would be replaced with it. We may simply have to create it as an IoP during the next major milestone."
This is one of my house rules: I currently have no limits on aspects that come out of role playing. If abused, sure, I'd bite down, but as far as making the character more interesting and fun to play (and especially giving me another tool to tag) I'm cool with that. As an adjunct to that, I don't think I'd make a character taking a en extreme consequence give up one of his usual aspects.
dian