Discover This Week’s FREE Samples. Freeosk is offering FREE Tabasco Sauce and Gain Fireworks at Walmart and Sam’s Club locations from 09/10/2021 through 09/16/2021. If you want to get this freebie, click on the “Get FREE” button, find a location near you and head out to the store. Download the Freeosk app for Android or iPhone so you can redeem the samples at the Freeosk location.