Register and install either the Alexa Skill or the Google Assistant Skill here. Once you do that, say “Ask Send Me a Sample for Drip Drop” and go through the steps to request it. If you want to use Alexa, you can download the Amazon app here. It should show up in your order history here when you’re done.
NOTE: Available again, it will keep going in and out of stock, so try another day if it’s gone again.