I think Ian Fleming (James Bond) liked to order a Vesper Martini, named after a female character in the novel Casino Royale.

http://en.wikipedia.org/wiki/Vesper_(cocktail)

Made with Lillet, rather than vermouth, and with a mix of vodka and gin.

The Vesper Martini

3 oz Gin
1 oz Vodka
0.5 oz Lillet Blanc

Shake (or stir) with ice and strain into a wine glass or large martini glass. Garnish with a lemon twist.

Here's an extract from the novel...

http://www.esquire.com/features/arti..._Drinking.html