The contest passed but you're still welcome to submit an idea to me and I'll see about getting it fabricated.
DPI = dots per inch. Basically, a 4x6" image at 300 DPI needs to be 1200 pixels wide by 1800 pixels high.
Also, there are threads in the graphics and fanart section of our official logos and mascots. If the logo or mascot is used, please do not alter it as these are official MMOG branding.