User blog:Chapter Master Tanner/How to create a Chapter Icon/Symbol

Hello I am new to this wikia and I am planning on making a new Space Marine Chapter. I have the Marine color scheme but I do not have a Chapter icon. How can I create a custom one that looks as good as the ones on here, especially the quality of the Iron Scorpions Chapter icon. Is there a website that makes Chapter symbols (I used bolters and chainswords to make my Space Marine). Please help, it would be great.