Razer Kraken Pros aren't comfortable to me

So I bought Razer Kraken Pros, and without thinking, threw away the receipt and packaging. My left ear is slightly different size than my right one, so when I put them on, it annoys me. I don't know if I could really sell it because I don't know who would want them lol. So does anyone know how I could make them fit/make them more comfortable? Or are there any square earmuffs that would fit on these things?

http://www.razerzone.com/gaming-accessories/razer-ear-cushion - maybe you can buy one of these. see whats perfect for your ears. it'll be a waste to chuck themĀ