Recently buy the new 3G iPhone?  Here’s a list of the top 10 things you can do with your old iPhone instead of it collecting dust in a drawer.

1. Use your old iPhone as a paperweight so all of your AT&T bills don’t blow away.

2. Make some minor modifications and install it near your front door connected to your doorbell.  If installed correctly, it’ll both ring your doorbell and call your new iPhone letting you know someone is at your door.  And if they’re in your address book, you’ll instantly know who it is.

3. Put it under a tire when parking your car on a hill to ensure your car doesn’t roll backwards.

4. Get together with other new iPhone owners and have a contest to see who can throw their old iPhone the furthest.

5. Play “spin the iPhone” to potentially hook up with other cool 3G iPhone users at a party.

6. Tape some string on the back of it and use it for a what will be known in your family as the most expensive Christmas tree decoration.

7. Walk into a gas station and offer your old iPhone to the attendant in exchange for a full talk of gas in your SUV.

8. Get your 3G iPhone box, put your old iPhone in it, and give it to one of those “tough to buy for people” for their birthday present.

9. Assign a new phone number to your old iPhone and program your name and number in every slot in your address book.  The next time you’re at a bar and see a guy or girl you’d really like to get to know, give them your old iPhone and say, “Let’s do dinner this weekend.  Give me a call.”  If after two days he/she doesn’t call, call them and ask to meet so you can get your iPhone back.

10. Modify the back of your old iPhone by using some duct tape, glue, and a wristband from a watch.  If properly put together, you’ll have one of the smartest watches in the world that everyone will be talking about.

Got a better idea for what to do with an old iPhone?  Post your thoughts below!