Tin cans for a project (Burbage LE10)

In our household we don't buy tin cans (beer, soda etc) and I need quite a few for a garden project. I'll be very grateful to anyone who has a surplus, or anyone who just throw them away.
I can ollect anywhere around 10-15 miles from our location (Hinckley) or even more faraway if you have many to give away.
Thank you very much in advance!