Only Splatoon item I have is the Callie Wig but if you need an extra of that for your sister or something then I can give it to you. Could I just catalogue your Splatoon items that you get (just pick them up and put them down)? For completion purposes.
Lmk if you want the wig though, because even if you don't feel comfortable with cataloging you can have it bc I'm not using it at all. It doesn't fit any of my character's designs.