Logo design

I'm looking for a logo to be used on packaging for mobile phone tempered glass screen protectors. The brand name will be Tough Glass and needs to combine the elements of strength but also accentuate a product which will not be clunky and get in the way of the day-to-day function of the phone- maintaining ergonomics etc.

As a thought, the T in a Tough might be a flexed arm with bicep muscle.