Unfortunately, you cannot buy commercially made Monster energy drink pickles, but someone had a friend make an actual batch after seeing a photoshop mockup of the product, and here is what he had to say about them:
Last month I posted a meme of Monster Energy Pickles that someone photoshopped.
My lovely friend Karen makes pickles and brined some pickles in Monster for me.
Let me tell you. I am in flavor country. And that country is a failed state. This is a cursed flavor. pic.twitter.com/8TtiVJf6bj
— Danimal/Armcannon (@armcannon) April 16, 2021
I’m sad. I kind of wanted these to be good! Next step, create some of my own using my sous-vide cooker. Andrew Rea from Binging with Babish thought me that technique, and his pickle recipe makes the best darn pickles I have ever tasted. There are many Monster flavors available, and replacing the sugar content of the brine with an equivalent part of the famous energy drink should do the trick.
Update: Monster energy drink pickles taste test from the creator:
Pretty sure other flavors of Monster would be a better fit. Maybe use something more… lemony? That would work great with dill!