A chair with built-in storage

This chair from GLTC is billed as a storage chair due to the little tray built in between its legs. I'm having a little trouble seeing how this wouldn't be filled, within days, with capless felt-tip pens, bits of play-doh, and five out of the ten vital parts needed to make a favourite toy work, but perhaps that's just my cynical side talking.

Where I could see these working is in a kindergarten environment, where everyone could keep hold of their own drawings or other stuff to take home at the end of the day. Anyone else got any bright ideas?