Robert Downey Jr. actually uses the products that he endorses/endorsed.
++ He voiced Apple’s iPhone 3G commercial:
++ He voiced Nissan’s car commercials for two years:
++ He starred in Volvo’s short film, The Route V50:
++ He stars in HTC’s "Here to Change" campaign:
He probably uses Google Play on his phone.
And had a pantry full of Planters products.