The MicroBlocks Activity Kit offers an excellent introduction to physical computing for educational environments. Each of the 10 micro:bit boards plus accessories are neatly packaged in a small container, and all 10 fit nicely in a little "suitcase". Made in partnership with OKdo and TinkerGen. Available globally from RS Online -- select your regional distributor and then search for "MicroBlocks Activity Kit".
What's in the kit?
Each of the 10 hardware elements are packaged in a separate container, making it easy for educators to distribute and collect the kits during classes and workshops.
Useful links:
OKdo product page (where you can buy it)
Getting Started Guide (printed copy in the kit)
Getting Started Videos: install MicroBlocks IDE - flash micro:bit firmware - quick IDE overview
10-pack of MicroBlocks Activity Kit Cards (printed copies in the kit)
Or download a zip file of all 10 cards.
There's also a playlist of the activity card helper videos.