Maybe a hibiscus-infused tequila? Hibiscus is a very popular ingredient in Mexican fare, and in fact, there's already a hibiscus tequila on the market:
You could also try a highball using hibiscus soda:
One of my friends mentioned a completely different Hibiscus drink some time ago. I have just tried it and it tastes amazing. The company is from the UK and as I understand they are just trying to break into the USA market. They have a few different ranges to choose from, but I had the sparkling version, which tasted great and was less than 70 calories for 240ml serving. Their other products are free from any sugars. The reason for my mentioning this, is that Their website: www.hibdrinks.com has a great range of cocktails to try, mixing with their drinks.
We made this during the Christmas season in the islands.
1lb dried sorrell
2 cups sugar
1 teaspoon cloves
boil and then Immerse sorrell in 1 and 1/2 gallons of distilled water in clear glass jar with tight cover and leave out in the sun. open and skim daily for 3 days.
After 3rd day,strain and add sugar,cloves, and quartered lime and boil again for 2 mins. let cool and bottle or serve over ice with white or overproof rum.
It is labor intensive but well worth it.