They don’t exist yet, but you can soon buy Polkadot tokens from CoinFLEX via a new mechanism: the initial futures offering (IFO).
Source: https://www.coindesk.com/polkadot-tokens-are-being-sold-in-a-coinflex-initial-futures-offering
Polkadot Tokens Valued at $75 Pre-Launch in Crypto ‘Futures’ Offering
July 16, 2019
CoinDesk
