A possible background gag for the Eva/Firefly household could be Jayne rebuilding his gun collection, while trying to keep Kensuke from crowding him as the teenager fanboys over the various guns. And if someone could tell him where he can get a Saiga-12 that he can dress up with the right accessories so he can have Vera back (at least visually), that'd be nice too.
I also like the idea that, for all of his casual lawbreaking as part of Serenity's crew, Jayne is very strict on making sure every gun in his collection is legal, with all the proper permits.
I also like the idea that, for all of his casual lawbreaking as part of Serenity's crew, Jayne is very strict on making sure every gun in his collection is legal, with all the proper permits.