You may donate with Fiat currency (not crypto) on PayPal:
Bitcoin Donation Address:
Ethereum Donation Address:
To donate Bitcoin or Ethereum, create an account on a cryptocurrency exchange and buy some. This is the registration page for Gemini, where my account is! It is worth investing in these cryptocurrencies because many of their values have grown exponentially with time since 2009. This is when Bitcoin, the most stable crypto, was released.