Musical Games for a Rainy Sunday

The Love-Drug Game:
Replace the word "love" in a well-known song with "drug" or "drugs" as is grammatically appropriate. If you're creative enough, you can bend the rest of the lyrics to fit.
The classic example of this is "The Drug Boat". Also fun is "All you need is Drugs"

The Eye-Thigh game. Replace "eyes" with "thighs", alter lyrics to fit:
eg: Private Thighs, are touching you, they feel your every move...
or: Can't take my thighs off of you...

I'm sure you can think of many others!