I spotted this delicious lavender martini recipe on my pal Tia Walker's blog of The Quest for It.
1 oz. No. TEN by Tanqueray
25 oz. French black raspberry liqueur
1 oz. sour mix, Ginger Ale, 1 Orchid
Shake the mix gently over ice and strain into a martini glass. Top with ginger ale and decorate with a floating orchid.