In Britain, all school children above the age of 12 have been given a micro:bit (http://microbit.org)
EasyEDA seems to be an easy single point of contact from design to fabrication to a possible speedy delivery of pcb's at a reasonable price.
In my test project to see how many components are available, I found some.
If any one else finds interesting edge connectors that I have not found, please "ping".
Note: I advice tags of micro:bit and microbit for all micro:bit projects/components etc
Current status will be at
https://easyeda.com/OwenBrotherwood/Baggybit-230bf229bd1a4e67a54f10b8406a4a19
Br Owen