Recently, I saw a funny metaphor for "Gift-Voucher" when I visited Shoppers Stop in City Center.
It is a poor example of using a graphics / icon to symbolize a concept. The graphic of a "hanger" gives no reason to relate it to a "gift" or a "redeemable voucher" or both. At least it is not evident to a normal human being. I think something traditional (like a gift box or picture of vouchers) with a touch of modern graphics would have done much better.
I doubt this signage is getting them any mileage.
Abhishek