Watering cans (Lakenham NR1)

I'm looking for 10 watering cans - any condition, as long as they hold (at least 5L of) water. I am part of a community group, Wild Lakenham, who have recently planted 18 fruit trees as part of an orchard renovation. We need to keep the trees watered in this dry spell and have to collect water from the nearby river about 150m away!