Goal and options: How do you make the base for a Borg mask?
output answer: Use any mask with a robotic/humanoid shape, then spray paint with silver.

Goal and options: How do I remove vinyl wall art from the walls?
output answer: Use the edge of a library card scrape under the edges without damaging the paint underneath

Goal and options: How do I use citric acid to clean a coffee pot?
output answer:
Fill the reservoir of a clean coffee maker with 6 cups of water and add 2 teaspoons of citric acid powder and brew.