Elephant in the room - Key Leaves products are quite expensive, and 20 bucks is a lot for what it is. I think it's quite easy to do something like this by yourself with a ribbon and two pieces of soft rubber, basically scrap materials. However, I decided to trust Key Leaves company and order Key Props since I didn't want to risk it and do anything that may potentially damage my saxophone. And yes - it works great! Stickiness of my G# is gone (it was quite a regular issue), so if you have extra 20 bucks and want to get rid of sticky pads, I can definitely recommend this product.
P.S. It also looks pretty cute.