[Unanswered]  X Motif customization

I've seen people customize their UX beys motif with what seen to be a different sticker and I was wondering how to do that. For example, someone takes their impact drake and slaps on an old bakuten dragoon sticker on it, I just don't know how to do it
They usually print their own stickers out - there might be a few guides online. There's also a few sellers online that sell the services.