Things you can do with crayons and pencils if just drawing with them seems just far too ordinary:

Christian Faur makes pixelated images from hand-cast encaustic crayons.

Here’s one for those who think you might be able to erase a few pounds from the backside whilst sitting on it, doing nothing!  Pencil bench by the twin Boex brothers.

[Both sites via Monster-Munch, a site which may just have the most adorable favicon ever, plus tons of other wondrous stuff.]