This can be attained as early as when you reach Edgewater for the first time.
You will get these items as you play the game and explore, but if you'd like to knock it out right away, go to the cantina, and here you'll be able to buy:
- Sugary Drink
Now, next door, go to the general store, and you can buy:
You can also steal these in the shops as well, but may give negative reputation. I would also recommend saving your game as to not waste bits or items before doing this.
Now, just go into your inventory and use 1 of each item type in 30 seconds.