Thanks to Dave Kuzminski, who posted the link in the comments on Miss Snark's blog, we can have fun pretending to be Jackson Pollock.
Or you can go here and pop bubble wrap.
Or you can go here and see part of The Lord of the Rings, as told by Peeps--those marshmallow bunnies you get in the spring.
Or you can go here and make snowflakes, a fun thing to do in a heat wave.
A last suggestion, go here and see the Bible performed by Legos.