Welcome to kakapum; This is the place where kaqueski and carpenterchild posts their graphics include icons, headers, banners, wallpaper, textures, coloring, and everything they can think of. You cannot join the community. However, you can always friend this community for updates.
There is no rule specifically. We believe you already know stealing is no good. We'd be happy enough with comments :) Credit is appreciate and we'd prefer you to credit kakapum rather than our lj users.