https://h2omax.com/ -scroll down their page until a box appears that says Free Hydration Sticker. Click the button to add to cart and checkout to get a Free H2OMAX Hydration Sticker with free shipping.
https://www.harley-davidson.com/us/en/current/get-a-sticker-holiday.html -fill out the form to get a Free Harley Davidson Sticker.

https://act.berniesanders.com/signup/Bernie-sticker-FDR-reissue/ -fill out the form to get a Free FDR-inspired Bernie Sander 2020 Sticker.

https://merchant-supplies.americanexpress.com/ -login or register and add the items you want to your cart to get Free AMEX Merchant Supplies. They have Decals, menu holders, register pens, and more.

https://www.sidewalkdog.com/shop/bumper-sticker/ -add to cart and checkout to get a Free Sidewalk Dog sticker. CO, IL, MN and WA only.
https://my.democrats.org/page/sp/get-your-free-bumper-sticker – fill out the form to get a Free Democrats.org Sticker.

https://act.yang2020.com/signup/i-have-data -fill out the form to get a Free Andrew Yang 2020 I Have The Data Sticker.

https://www.tomsteyer.com/tom-2020-sticker-pack/ -fill out the form to get a Free Tom Steyer 2020 sticker pack.

https://www.harley-davidson.com/us/en/current/get-a-sticker-holiday.html -fill out the form to get a Free Harley-Davidson Sticker

https://www.peta.org/students/free-campaign-materials/ -fill out the form to get a Free PETA Boycott Forever 21 Sticker.

https://my.elizabethwarren.com/page/s/psmm-sticker – fill out the form to get a Free Elizabeth Warren Public School Made Me sticker