There are plenty of ways to make a raspberry martini..
Basic Raspberry Martini
3 parts Citrus Vodka or Raspberry Vodka
1 Part Chambord
or
Sour Raspberry Martini
2 parts citrus vodka
1 part chambord
1 part sweet and sour mix
or
White Chocolate Raspberry Martini
2 parts vanilla vodka
1 part chambord
1 part cream
drizzle inside of glass with chocolate
or
Raspberry Champagne Martini
2 parts citrus vodka
1 part chambord
1 part champagne
lemon twist
or
French Martini
2 parts citrus vodka
1 part pineapple juice
1 part chambord
lemon twist
or
Chocolate Raspberry Martini
1 part chocolate (or plain) vodka
1 part Chambord
1 part Godiva Choclate liquor
splash of chocolate syrup
splash of cream (optional)