Yeah, there's a new exchange called btc6x that launched their airdrop back in December, I got mine and never used it since I never intended to be a trader. Though I realise I can get its value out by exchanging it here
I'm sure the OP was referring to the new coins that are only valuable on their own exchange more or less like this (as is the usual way of airdrops to attract new users). Otherwise, OP will have no trouble selling $100 because that's above the minimum order amount on all exchanges.