Is it possible, without access to centralized exchanges such as Binance, to somehow convert some crypto such as ETH into Avalanche (AVAX) coins and transfer it into Metamask/Avalanche (C chain) so that the wallet would become usable? It seems that gas fees have to be paid in AVAX in the Avalanche blockchain. The Avalanche Bridge moves crypto from the Ethereum blockchain to the Avalanche blockchain but it seems it cannot convert coins into AVAX coins.