For something a bit more festive and exotic, my vote goes for a Rose Martini.They taste like liquid Turkish Delight. With gin.
I would use Hendrick's because the aromatic flavor will blend nicely with the rose - shake up your chosen ratio of gin, simple syrup, lemon juice and a few drops rosewater - you should be able to find this in most large grocery stores - if you can manage to find rose petals, scatter them in the glass, and if you're feeling adventurous maybe a slice or two of cucumber. That's it. Lay back on your cushions, and start trying to figure out which of your fellow guests had motive AND opportunity.
images via hostessblog.com and foodandwine.com