We had he butt end of a celery stalk which I thought would make lovely patterns, piece of brocolli, a celery stalk, an onion and a carrot. Using vegetables as an art medium is a nice change I suppose, plus you can also talk about vegetables (eg smell,taste,colour etc).
She loved it so much that
|using the onion|
...before I knew it the whole table was full of paintings!
and they were so pretty!
|this is the one she made using the end butt of the celery stalk|