RAINBOW SHOTS look nice, but usually taste bad (especially the red shots, which end up with only grenadine). I make an improved version, more balanced in flavor, which is not only pleasant to look at, but also to drink.
What is the most bitter drink you know? Jagermeister? Campari? Fernet? If so, you obviously haven't tried Zwack Unicum, which tastes like bitterness itself. I made 4 cocktails with Unicum, and they are actually pretty good.
ChatGPT came up with several cocktails and ordered me to make them. While some of them were questionable, others were pretty tasty. I consider the experiment a success.
My new favorite cocktail with mezcal, chili pepper and Triple sec infused with Earl Grey tea. Ineffably smoky-sweet-tart flavor. Highly recommended!