CGU offers supporters of Collingwood Football Club a 10% discount on their CGU insurance.
It's free to become a supporter of the Collingwood Football Club with signup available on the link above.
If you have an existing CGU insurance policy, you can then call them on 1300 780 426 to have the discount applied.
Note: I actually received a 14.9% discount on my home contents insurance and a 10% discount on my car insurance (although I get a 50% discount on my car insurance for my no-claim bonus so effectively only 5% discount).
Does it come with a free dental check up for Collingwood supporters as well?