Love the #AOTINA Echo Dot mount. We are so tired of all the cords around the house (on the counter, under the window ledge, sticking out of corners), this is an awesome alternative (plus the kids don't unplug Alexa looking for a cord to charge their phone or other device). Only real suggestion would be for it to have another plug on top (doesn't seem like the Echo would have a large power draw, but this covers the plug it is in). Easy to use, and actually makes the Dot kind of portable (still need a wall outlet, but easier to move around -- I expect it will "wander" to my children's rooms before too long).
https://www.amazon.com/AOTINA-without-Kitchens-Bathroom-Bedroom/dp/B079BNS6GS