Its not always convenient to place the Echo Dot on a flat surface. A wall mount is sometimes more suitable and practical. You can obviously just use double sided tape and attach it to the wall but why do it if you can 3D print your own mount.
I designed this to be minimalistic and not interfere with the top lights or the speakers. This is a very easy print. It prints without supports. I used a newly acquired marble coloured filament. Printed with 0.2 layer height and 20% infill. It took roughly 2hrs an 5 min on my Prusa i3 MK3 3D printer. You can download the STL files from the Designs section of this web site or by using the link below.