Using spray bottles are so much fun and great for hand strength, which is needed for holding a pencil or cutting with scissors.
You can pick up spray bottles from your local shops. Fill it with water, and try some of these activities:
water the plants
spray the bark of a tree (when it’s dry) and see if it changes color
dry with chalk on the footpath, then spray it – what happens?
clean the windows!
draw a picture with texta, hang it up outside and spray it with water – watch the colors drip and blend together