Twitter Mosiac is a mashup that allows you to create a collage of all your Twitter friends or followers… and then put them on a cup, t- shirt, card, bag, mouse-pad with a click of a button. Yes, physical products you can actually touch. But it’s not free: You’ll have to pay for the actual finished product. For example, a mug costs $12.95.
If you’re not into that, you can grab the mosiac for your Twitter friends and put it on your blog as well. Just beware that if you have a lot of friends of followers, your collage will be pretty huge.