10. Perms
The hairstyle popularized in the '80s is making a comeback, with perm hair services up 77% in 2018.
9. Succulents
Plant-loving millennials are creating a succulent boom. Sales of the trendy plant increased 80%.
Read more: Millennials are obsessed with raising plants, and one New York-based startup is poised to capitalize
6. Unicorn anything
The influence of Starbucks' Unicorn Frappuccino is far from over. In 2018, sales of anything unicorn related were up 110%.
Read more: The Unicorn Frappuccino completely revolutionized how Starbucks invents new drinks