Related Clues:

• Macy's red star, for one
• Small design of lavatory holding gallons
• Blue bird, for Twitter, e.g
• The one for Baskin Robbins has "31" hidden in it
• McDonalds' golden arches, e.g
• Peacock or eye, in broadcasting
• Amazon's arrow smile, e.g
• Letterhead image, maybe
• Company picture