OMGCatCoins can be buyed throught EtherDelta - https://etherdelta.com/#0x37D82a4e03E93529c1A32429984E12e7875Ea1D8-ETH or ForkDelta - https://forkdelta.github.io/#!/trade/0x37d82a4e03e93529c1a32429984e12e7875ea1d8-ETH