This video, via Cereal Killer, takes a look at how to make a DIY stand for Eurorack all-in-one synthesizers.

The stand is a 4-tier design, tailored to the width of the Behringer Neutron. But as noted in the video, the design could easily be adapted to hold fewer or more synths, and to synths with different widths, like the Behringer D or the Moog Eurorack synths.