Thank you very much. The Gunbai and Helmet is really appropriate for the set, and hopefully will stay. With regards to the crests, I think one of the most popular should stay. Were you only considering a max of 4?
If I were to choose one it would be the Sanada one, but it would feel incomplete without more of them. Yes, about 3 to 4, since I do not know the cost yet. There would be way too many novelties I can think of to add and chances are people will only like a few of them, so at that point it wouldn't be worth it imo.
So, I've narrowed down to 3 types of novelties: head, sword, and a throwing star, which seems to make more sense. Will try to make another variety of those three types from what you see so far. For the novelties kit, I was thinking of adding VIM HJKL arrow keys and R4 1u 00 key for those people who want those keys. The 00 key just feels like a novelty to me. If there are any other keys I am missing I'd probably see if it fits well in the novelties kit. I am still wondering whether the Norde kit or spacebars kit need improvement. Where are the Nordic layout users when you need them.
If you are gonna go with anime inspiration, you'd think Rurouni Kenshin would be on top of the list.
Although I know that was a good anime, it is not my preferred anime.