Build bottle skittles
Instructions
Apply a base coat of paint to each bottle and then leave them to dry. You may need to give them a few coats to get a solid colour. Once you are happy with your base colour, you can decorate your bottles. Painting stripes makes them look like to bowling pins, but you can paint any pattern you like.
When the bottles are completely dry, pour three tablespoons of uncooked rice into the bottom of each one and screw the lid on. Line them up at the end of your garden or living room, grab a tennis ball and get bowling. How many can you knock down with a single strike? If you have a partner to play with, take it in turns to bowl and pick up all the skittles after each roll. See who has the highest score after each player has had five goes.