Hoverboards were the holiday gift of 2015, but this year wasn't quite as good to the self-balancing scooters.
After reports of burns caused by exploding devices, the U.S. Consumer Product Safety Commission deemed hoverboards unsafe. Retailers pulled them from stores, transportation agencies banned them from trains and buses, and, ultimately, more than 500,000hoverboards were recalled.
The devices' lithium-ion battery packs -- the same battery found in Samsung's Galaxy Note 7 smartphones -- were blamed for the incidents.
Although hoverboards received a slight resurgence later in the year -- some manufacturers implemented more safety measurements -- the Consumer Product Safety Commission continues issue recalls.
