When you make an avatar shop or signature shop, be sure not to use other peoples work.
Many members work very hard to make their examples for their shop and they would be very upset if someone took their examples to use for their own shop. First of all this is stealing and I am sure nobody wants to steal.
If someone made you an avatar and added their own little simbol on the bottom corner, please to do ask them to remove it. They might have worked hard and want some credit for their creation.
You may not offer credit to people to publisize your shop. For example if you want your shop to be popular, please do not make your title: "Special Credit if you Order!". This is not allowed. You will get your customers fair and square.
One last thing, make sure the website you get avatars from allows you to hotlink. This means that you must be positive that the website in which you find people avatars lets you take those avatars or graphics.
Please follow these rules and make sure your shop follows them to.