Tangled Words

In this grid, one letter from each row will form a 6-letter word. All letters will be used to form six words. The letters in each word are in order from top to bottom. The first word, PLANET, has been identified for you. The thing that doesn't belong with the rest of the items can be used as a promo code for 10% off a puzzle room experience. The code is valid until August 1, 2022.