Tell you the process, eh, Cap'n? Sure, I can do dat, but I should warn you, it may spoil the magic for some of you out there. I strongly urge both the faint of heart and the faint of butt to close this thread at this time.
First, you send an email to
brotherschaps@homestarrunner.com with your fanstuff as an attachment. The better quality the image, the more likely they'll notice it. Then, TBC look over everything they've been sent and pick the very best one to feature. They even send you an email back telling you that you were chosen!
As for tips on what to submit, you can do just about anything, as long as it's interesting and unusual enough. See
the archives to check out which others have been chosen, but be sure to be original.
Good luck!