I've recently Found å site Called csgodouble, its a roulette style gambling, you deposit/withdraw skins using coins.
Also.. feel free to use my promo code AK47GOLD for 500 free coins
1000coins equals about 1$
Csgodouble.com
website doesn't seem to have a history on google (at least nothing much) and the users online on that website are 0 as I can see , so I will probably not go for it since it seem dangerous and not legit (and probably it's your service and you are promoting it otherwise it wouldn't make sense why you are bumping few months old topic) .