Purchase Brave Robot Ice Cream and submit your receipt to get 100% of the purchase price back. –locator

Purchase Moonshot Crackers and submit your receipt to get 100% of the purchase price back. –locator

Purchase a Perfect Bar 2.3 oz at Walmart for $2.37. Submit your receipt here to get 100% of the purchase price back.
Then use the $2.49/1 Perfect Bar Ibotta offer to make it better than free.

Crest Whitening Toothpaste on sale for $3 each
Use the $8.50/4 Crest Products digital coupon.
You get $4 Walgreens Cash when you buy 4, making them free.