AUSBABYCARD
Discount is for anything on their site, including their sunglasses, swimwear, hats, baby footy booties, etc.
Baby Banz are Australian-designed 100% UV protective, wrap-around infant sunglasses. Prices start at about $20 a pair.
Enter AUSBABYCARD in the Promotion Code section to receive a 15% discount. (Don't know expiry date, sorry.)
Here's some photos of babies wearing them: Baby Banz Fanz
Tried this, still works! :)
(Thanks to the anonymous mod who updated the deal!)