I made cheap, effective window draft stoppers. Easy peasy, completely customize-able (length, thickness), and almost invisible with white or off-white window frames (which most are unless they’re varnished).
My phone is old, so the photo is lousy:
Components:
Medical stockinette tubing (I used 2" width, in off-white, cost $10 for 75-feet at Amazon):
Pony/pigtail hair bands (no more than $2 for the packet):
Plus, a big bag of cheap white rice ($10 for 25 pounds at Costco).
Thanks to the hair bands and the stockinette already being a tube, there’s no sewing or gluing the seams to deal with, and if you decide to make the tube bigger or thinner for a different window in future, you can either unwind the hair band or just cut it and use a new one after you finish adjusting the rice fill. The white rice won’t go bad and is an excellent desiccant for any condensation too.
