The Raspberry Pi Zero is half the size of a Model A+, with twice the utility. A tiny Raspberry Pi that’s affordable enough for any project!
YOUTUBE jFoA4u4x2uk Introducing Pi Zero
# Case
The Pibow Zero W case, in berry colours - red, purple, and blue -
- pimoroni.com 
# Cost
9.60 Pi Zero W 5 Pibow Zero W 12 pHAT DAC SUM Total