If you are looking to create something that will keep the cold air out and the warm air in, a draft stopper may be a good idea. It's a great alternative to buying weatherstripping and can be made from scratch in your home.
To make this you'll need:
-One of the following: Yesterday's News, dried beans, or rice
You'll be mixing all these materials to make an eco friendly tool that is sure to save you money on your utility bill. Enjoy!