Having built guitar effects pedals for the last 10 years, I've progressed from battery power to requiring a power splitter for a decently powered DC adapter.
The overall plan is to put the power supply on the underside of the pedalboard, so I needed about 10 outputs and four to be longer than others.
It's a very simple design, but it really needs to work reliably and a minimum parts count was desireable.

So it's not that pretty, but it's rugged enough to sit on the bottom of the pedalboard without to any dramas.