What generic icon could be used to symbolize a brand (McDonalds, Apple, etc..)?

I need to use an icon in a web application that will represent "Brand" as an object. The "Brand" could be "McDonalds", "Apple", "BMW" or any other company/brand.

What generic icon would represent "Brand" well?

Right now we use a simple star as a brand icon, but we are not quite happy with this.

Any suggestions?