Garden Watering Can Diy . An adorable and practical approach to watering small plants, this 22 cm tall can is one of the best watering cans for indoor use, young plants and seedlings. Fill with water and you are set to go! Pinned it. Made it. Love it! Watering can from a milk jug from onecreativemommy.com 1 best diy self watering ideas. 1.6 #6 bottle watering globes with wine bottles; Rinse an empty two liter soda bottle.