https://sugarrefund.com/about/?
Monthly prize: $125

https://www.pactimo.com/pages/win-250-in-cycling-clothing-signup
Monthly winner:
win $250 in cycling clothing. Winners can select from the extensive collection of jerseys, bibs, jackets, thermals and accessories, including our Summit 12-Hour Bibs

https://www.worldsbestcatlitter.com/dump-your-litter/?
Photo upload required
Monthly prize: year’s supply of World’s Best Cat litter

https://lionesse.com/giveaways
5 lucky winners. Prizes valued up to $500 each.

https://www.1215diamonds.com/giveaway/
Monthly PRIZE: $5,000 of store credit towards the full retail price (prior to any discounts) of any 12FIFTEEN Diamonds products.

https://seekbamboo.com/pages/bamboo-toilet-paper-give-away
Monthly prize: 1 year supply of Seek Bamboo toilet paper