Hello! I'm sorry for my level of English. Maybe I didn't understand you correctly, but I'll try to reply to your question.
All my cosplays in gallery including Usagi Cosplay were created by me. I sewed them, I made ornaments, necklaces, earrings, staff, weapons, etc. I'm a cosplayer, so I like to make costumes by myself.
I hope my answer will suit you)))