Here is an awesome very small Cube Powerstrip, which has 3 USB 3.0 charger connections, and one USB type C connection on the top, 3 power US Power Plugs on the front. It has a really strong base which you can use 3M tape to hold it down on the table or Use 2 Philips screws to hold it down under your table or top of your tablet or side.
Watch the video to learn more,
Where to purchase:
Amazon USA: https://amzn.to/2N8rZPW
Amazon CAN: https://amzn.to/2NaBw9h