For phone charging
I saw this in a bookstore in San Jose, Costa Rica. It is made by a New York company. I love it for all the travelers who now balance their phones on their wall chargers in hostels. It takes up a bunch of room in a backpack though – depending on packing. I didn’t get one to try it though, so this is not an endorsement. By DRIINN – driinn.com, New York. It comes in several colors.