Why was there an orange ball in a can of Tango, but no Tango?

The other day I found a ball we used to throw for my dog when she was a puppy and I asked my mum where she had got it (here's the bizarre part). My aunty had bought a six pack of tango years and years ago, and the ball was inside one of the cans. No drink, just the ball.
Was this a marketing promotion, some kind of competition, something gone horribly wrong!?
I still have the ball - it's about ping pong ball sized, orange in colour with a little green splodge to mimic an orange.
Very much looking forward to a response!
 
Back
Top