It's never too early to start Spring cleaning and see what items you can find to repurpose. Used socks aren't really for donation and there is always that odd length of foam pipe insulation left over from previous attempts to make the house more energy efficient.
With some basic sewing, you can put together your own draft stopper. Use it under a door or even a window to block the chill. Does not interfere with the normal operation of the door or window.
Please do not confuse a draft stopper with a draft dodger. You will find those further up North where it is colder.
Step 1: Get scrappy...
You need three or four pairs of socks to use or you need some stretchy thin fabric.
You need some scrap material pieces to use for the extra decoration.
You need some foam pipe insulation pieces. They come in various sizes to fit different diameters of pipe. The bigger sizes will provide a better fit as it hugs the door better.
You will need a little bit of fiberfill to stuff the accessory pieces.
You will need to be able to sew, use of a sewing machine is not required but will make things go a whole lot faster. I use a serger since it is a whole lot of fun to make things quickly. A serger will trim and bind the seam as it goes along.
CAUTION: Know how to operate safely around cutting implements, tools, sewing needles and sewing machines.