"Textured Painting - Natures Paint Brushes" This is not just art, but art in nature! Go on a nature walk to gather 'schtuff!' Then use what you gather to create art or As art!
Aboriginal Clapping Sticks are an easy Australian craft that toddlers will love - both making and playing with afterwards. From @ LaughingKidsLearn
This is a great art idea for NAIDOC week which uses Aboriginal symbols to create rock art which tells a story.