Looking at tin cans

Looking at tin cans, looking on hard
From one of these angles it’ll look like a bird,
Or a bear, or a deer, or may be a penguin!
May be they are all true – all quite genuine!

Or so they say – the ones who know
What to call stuff – coke, smack, blow.

But guess what lad,
And this is rather sad.
Sometimes a tin can is
Just a tin can and not
Superman.