Richard Shilling on Land Art for Kids what a great idea for outside leaf/nature sculptures. make sure to watch an andy goldsworthy documentary too! Should you appreciate arts and crafts you really will really like this site!
fairy soup - happy hooligans - outdoor sensory activities for kids. This is also a free activity you could consider mentioning to parents; a trip to the local park and then play at home. Also called a messy mixture, or "perfume making"