The Slashdot logo has been around for a long time now; the truth is, we're rather fond of it, and have only rarely introduced substantial changes. But for the month of October, as a way of celebrating the site's 15 years of delivering News for Nerds, we invite you to help us temporarily change it. If you have an idea of what the Slashdot logo should look like for one day in October, this is your chance to see it on the page. Starting September 15th, we'll be accepting entries, and sending limited edition anniversary T-shirts to the artists we pick to show off on the page throughout the month. (And a Nexus 7 tablet to the artist who ranks best in show.) Click through for information on what we're looking for, how to enter, and the long list of rules that the legal department has provided for your reading pleasure; we look forward to seeing and sharing your ideas.