One thing I do love is NANOWRIMO! And if you've never heard of it, I totally suggest checking it out! http://www.nanowrimo.org/ Every November is National Novel Writing Month. The website is dedicated to this fun, individual contest where you try to write a 50,000 word novel in 30 days. It's a really fun environment that encourages you to just get pen to paper and write. And if you finish (it's all based on the honor system) you get a cool certificate! I've personally never finished, but I have written a lot of really funny, genuine crap that I love.
They also have a few other contests through out the year. I believe April is about writing a script in one month.