“Shark Tank” is one of America’s favorite reality TV shows. It brings out many viewers’ inner entrepreneur and has 10 successful seasons under its belt (with an 11th on the horizon). Not every “Shark Tank” pitch ends with a deal, but the innovative products that enterprising contestants create are something to remember. Regardless of whether you’re a fan of the show, these markdowns on creations that almost snagged a deal — and a few that survived the tank with offers from the Sharks — are worth browsing. If you want more of our editor-sourced products and reviews, sign up for HuffPost’s sales and deals newsletter. The inventor of these earplugs turned down a $100,000 offer from super-Shark Kevin O’Leary, but it didn’t hurt his business at all. Vibes hit more than $2 million in sales in 2017, and its product continues to grow in popularity. These discreet earplugs do more than just muffle sound: They actually enhance sound clarity for more balanced listening. You’ll still hear every note at a live concert, but the Vibes will protect your ears from noise-induced hearing loss. They’re also washable and reusable, making them a great bang for the buck. Normally $27, they’re on sale...