My friend kev (also a 2.0er) and I have created over 50 activities that are outside the box and pretty interesting (creative line art, invitation to an event, recipe, myspace, etc.). What I really like about them is that they can be used for almost any unit or content area.
I teach social studies so many of these are currently worded for my subject, but they could easily be modified for science and language arts (sorry, but no so much for math). Teachers at my campus (not just social studies) have used many of them for great effect.
I just wanted to share these with everyone because students realy enjoy them and they are very useful to teachers as well. Feel free to download them www.mrwoodside.com