I discovered a great website for making "word clouds". You can choose the words yourself or you link it to a website or twitter id etc. You pick the shape, colours and orientation of the words...believe me, you can spend a long time on there!
I used this website to create a piece of art for some friends who are getting married this month. I used a box frame from Ikea and printed the picture from Tagxedo (you can dowload a jpg file which I then cropped in Picasa). I love how it turned out, I hope the happy couple like it!