Have you ever had a color-changing cocktail? It's a feat of magic and a feast for the senses, but it doesn't have to be complicated. Empress 1908 gin contains peaflower, which gives you a really easy way to turn your drinks blue! The trick, of course, is to make sure you pour it right in front of your guests to change the color of your drink before their eyes. At the link, you can find out how to make other colors, too.
There are all kinds of ways to make fun effects in your drinks, though. Have you ever tried using food coloring in alcohol or juice, freezing it, and then using that as an ice cube that melts and changes the color of your drink? It's not instant but it's still a nice visual.
What other fun drink effects do you know? Share your tips and tricks in the chat!