Haha thanks for the feedback. Yeah, there are already some dog earmuffs on the market called 'mutt muffs' but they have very mixed reviews and plenty of people saying they are too expensive/ don't do anything to block out the sound. So i figured I'd be able to make them cheaper/better and see if anybody else would be interested .
if you don't mind me asking, would you ever use ear protection for your dog? If not, why + what would make you try it?