There is an option for creating your own armor textures on MCreator, but it's kinda useless. All you can really do is get a color for your armor. You guys should really add an option that allowed you to paint the armor texture yourself, since importing it rarely, and i mean rarely ever works. It would be a great feature for everyone. If I'm just ignorant to this feature and it does exist, please tell me.
Issue comments
Ok guys, I think this is gonna be reopened i guess.
Well, I go into mcreator, and everythings gone. I cant open any workspace because they aren't there. Before that, they were asking me for a EULA agreement which never got accepted. Please help, and make sure this doesn't happen to anymore people.
You can make the base in this template editor and then open it with built-in or external editor to modify it and use the template to define texture boundaries only.