Half milk, half cream – this mixer is fatter than regular milk, but cannot be whipped. Half and half (or half cream in the UK) is available in food stores.
Kahlúa, Half and Half, Triple Sec, Orange
Cognac, Half and Half, Simple Syrup, Bitters
Absolut Vodka, Malibu Rum, Banana Liqueur, Half and Half, Melon Liqueur