I need help with my family’s strictness regarding alcohol

Hello,

Tomorrow, I have a friend’s birthday party on a boat, and I’m planning to take some of my dad’s white and rosé wines. Since my parents are strict, I need to return the bottles and fill them with a liquid of the same color. My dad will never drink these wines, so it won’t be a problem. I just need something that matches the color and appearance. What should I do in this situation? Can you help me?