How about 'treasure bags? maybe tie a coloured or shaped label to each one (or name of the day ?) and hang them up somewhere, give the children clues as to where they can find it, am wondering what you could put into the bags though
lol
Another idea is to store or group plastic animals etc in them, again maybe with a picture of the animal on the outside of the bag ~ working on the theory that children love taking out & putting in ... when they want to that is !!
Also curious as to what playdough, paint or silly putty would be like if squeezed out though them
?