Be creative, and document your project well. We're not terribly strict, but it must be applicable to the Harry Potter theme! If you need inspiration, check out the Harry Potter Lexicon for more information than you possibly wanted about characters, magical creatures, [magical items], spells, and history from the Harry Potter books and movies.
Then make something awesome, share it on Instructables, and add it to the Harry Potter Challenge group by 11:59pm PDT, Wednesday July 25. That should give you plenty of time to read the book and get your project up! Add the keyword "hpc" to your Instructable (you can do so after it's published by scrolling down to the "keyword" box at the bottom of the right-hand sidebar and adding the tag), and click on that keyword to see how yours stacks up.
Since this is a short contest, we're letting the audience judge! Find the entries here and rate your favorite projects so we know what you like. Vote for as few or as many as you like- it's up to you. Only positive votes will count in this contest! We're not counting negative votes, so voting down your competitor's projects is both unsporting and useless.
We'll judge based on the standings at noon PDT on Monday, July 30, so everyone will have time to check out and vote on even the latest entries. Results will be posted shortly thereafter.
Only projects posted during the month of July, 2007 are eligible. If you've got an older project that could apply, make another with improvements and submit it to the contest! Post an improved version of someone else's Instructable with a link back to your source of inspiration!
Project Submission Deadline: 11:59pm PDT, Wednesday July 25 Audience Judging Deadline: noon PDT on Monday, July 30
Fine Print: You can only win one prize per contest, but enter as many projects as you like and cross-post to other contests! International entries are great- we're happy to ship our t-shirts abroad. If you're under 18, that's fine too- we'll just need your parents' OK if you win.
1 where dragon = laser. What will those Muggles think up next?