The Xiaomi Vertical Wireless Charging Socket will soon be appearing on the Chinese OEM's crowdfunding site at an introductory price of just 109 yuan (US$16). The charging accessory can offer 10 W wireless charging and comes with three USB ports. The Vertical Wireless Charging Socket is only available in white though.
https://www.notebookcheck.net/Xiaomi-announces-its-Vertical-Wireless-Charging-Socket-with-three-USB-ports-from-just-109-yuan-US-16.481277.0.html
Surprisingly thoughtful product? Finally a wireless charger that doesn't just take up desk space. Now the question is whether all three USB ports support 18W simultaneously or if, say, it's a mere 30W total.