I like the idea of friends exchanging boosters, I mean why not?! If we can ask for lives why not be able to ask for a booster in exchange for a life or a different booster.
I use all of the boosters to help me get out of the variety of difficulties I find myself in within the game. I don’t use the “party horn” booster much, not because I don’t like it but because I don’t often get it.
I like option (B) but I’m used to seeing the nutcracker in CCS & I’m not sure if the option I’ve chosen would actually fit in that game. I think I’d need to see all of them within the game to really give you a true idea of which I would truly prefer to see.