Kids coloured chairs

I just had a look at Sea of shoes where she has made about about fundraising and getting kids to colour the fabric of some chairs.

I have just decided that this is what I want to do with my kitchen chairs or the chair I'm fixing at the moment.

Think I even have some kids that can help me out with it.

But what canavas to use & how do I make it last when its done?

Hmm think kitchen chairs will be the ones: that means i can send a chair with each multikid parent home at work for them to draw on.....