They were so into art, and always getting glue and glitter on the kitchen table, or their project wasn't done before dinner-time, that I utilized an old desk that had been given to us. The supplies go in the drawers, there's a bulletin board above it for drying and displaying things, some overflow goes onto shelves next to it, and it's ALL THEIRS. I never have to move anything or clean stuff off if I want my kitchen table. The drawers have been very nice, perhaps because they're small, and only one type of thing goes in each drawer (rather than big, deep filing cabinet drawers that they may have had to dig around in).
I only did this 2-3 weeks ago, so I can't say yet whether it's worked well. But they sure are proud to have their own "art desk". (of course, not everyone has an old desk sitting around, much less the space)