I am brunette with brown eyes as well~
T3T and sadly not much can be done about that, unless you want to go all out for your cosplay, or you decide to cosplay someone who looks like you~~
This year was my first time wearing cosmetic contact lenses. I was really nervous and scared to be honest, since I knew nothing about contacts, and I didn't need them for anything really.
I practiced wearing them for a few days before the convention, I bought plenty of eye drops. Ones for contacts, and ones for redness and irratation for my eyes. And I never had a problem except once (explains down there)~~
Though they are nervewracking when you first place them in your eyes (practice always is lovely~~) The most I was in the restroom placing the contacts in my eyes was 1.5 hours. Long yes, worth it? you bet.
You NEVER want to put them in the wrong way. How I found that out the hard way, is it BURNS. I did everything correctly, except I didn't look hard enough at the lens to see if it was inverted or not. That is a big issue, you have to look reallllly closely, because cosmetic contacts are quite thin, and its difficult to not notice such a small detail.
I purchased 2 pairs for $40, which is an amazing deal (they usually run for a lot of money!!!)
I was told to go to an eye doctor, but I didn't have the money. I know that I was 20/20 vision, so I purchased 0.0 contacts (those are usually for 20/20 vision, but you always should make sure)
:3
Overall I had a lovely experience : 3