Replying to Im after some Free Stickers

Hello fello schoolers, im after some stickers for my waterbottle. I know a lot of companies offer free stickers if you mail them a Self addressed envelope. and I know you can ask for some from like GoPro or something. Can anyone give me links to free stickers requests that revolve around skiing or winter sports. Its always the best to get on that stuff now and then randomly get a letter in the mail with free shit months down the line. And by then the season is upon us. Thanks