Seems to be a further 30% off on already discounted items as well. I added a discounted towel and it took another 30% off.
As always, ThinkGeek can be a little expensive on the shipping, so keep that in mind (or use a reshipper).
Edit: sorry should have put the code in my original post.
Until they rationalise their rockstar pricing for shipping, its hard to consider this a bargain