Trump lifts sanctions on Venezuelan oil, how to buy Venzuelan bolivar?

As latest news say US is going to lift the sanctions gradually on Venezuela‘s oil. That‘s why I was wondering if it is anyhow possible to buy/trade foreign currencies like the Venezuelan Bolivar in order to buy cheap and sell for more? I am not very familiar with buying currencies etc, but my investigation couldn‘t find any options to buy that currency. Is there a workaround go get a hold of these currencies? I live in Germany where I don‘t have quite the direct access to those currencies
On another note: At some point this might eventually happen to the Ruble (Russia), but same issue like with the Bolivar.