Multiboard Amazon Echo Gen 3 bracket

Very quick remix of this pegboard bracket [model](https://www.thingiverse.com/thing:6222539) for the Amazon Echo Gen 3

It uses the small threads of the multiboard and I suggest the [9 mm Small Thread, Flat Head, T-Bolt](https://than.gs/m/973894) to fix it to the multiboard.

This can be printed without support.