https://www.lumifydrops.com/trylumify? -fill out the form to get a Free Lumify Redness Reliever Eye Drops Sample.

https://marketing.goldenpaints.com/acton/fs/blocks/showLandingPage/a/35184/p/p-000c/t/page/fm/0 -fill out the form to get Free Golden Artist Colors Paint Samples.

https://www.tanglecreations.com/products/stop-smoking-vaping-with-a-free-tangle-jr -add to cart and enter promo code SMOKEFREE at checkout to make it free with free shipping.

https://drinkkoia.com/survey/? -fill out the survey to get a coupon for a Free Koia Protein Shake-store locator -Update- Working again

https://jollypetsplayhouse.socialmedialink.com/ -login or register, then look for the offer that says “Are you ready for some furr-ball!”. Click get started and answer the questions for a chance to qualify.

https://twitter.com/tiktok_us/status/1172563149750300677 -post a tweet that says: #TikTok http://vm.tiktok.com/AKu8AW/ #TikTokBurrito + #TikTokContest
Then go to your notifications here and click the link they send to

https://www.alister.co/try-me-size?utm_medium=post&utm -add one of the free “24h giveaway” products on that page to your cart and enter promo code: PHEROBOOST to make it free with free shipping.

https://www.lenovo.com/us/en/rewards/ -make a new account and be sure to select the Join Rewards option . Verify your email and login and you should see the $10 reward. Then go here and take the two surveys for $1 each, and fill in your profile for another $2. You can get these items for free:
Mouse or Keyboard
Laptop Sleeve or Backpack
HDMI Cable
Headphones
Or these for money:
Mouse and Keyboard Combo $1
USB Speakers $1
USB Power Bank $4
At checkout, apply your rewards. If you live in a state where tax is charged, you cannot apply your rewards for tax, so be sure to only apply your rewards to the pre-tax subtotal.
Their site is loading very slow, so it might take a while to get through. 

https://nioteas.com/pages/tea-quiz -take the quiz, the answers are  sencha, 6%, and Monks. Then click apply my discount and on the next page scroll down and select a sample that you want. Add to cart and it will be free with free shipping with the discount already applied. –Update– the quiz questions change, but they let you play multiple times, and if you cant get them right before it ends you can clear the cookies or try an incognito window to play more.