As part of my research, I end up making many quick-turn PCBs. This one turned out particularly well, so I'm posting it as an exemplar.
This PCB includes two differential ADCs with a built-in gain stage. These are used to measure the output from a pair of load cells. An ATtiny44 reads data from the ADCs and outputs results on a serial bus.
The PCB is mounted on a laser-cut acrylic base, which in turn mounts onto an 80-20 rail.