From my recent event in Boston for FIRST Robotics New England District Championship Competition.
Looking onto the field of play, here is the stack of blocks that our Robots had to move and place onto scales for points.
This is perfect for The Color Challenge - Wednesday Yellow - Photo Challenge started by 
More of my Color Challenge Series
Monday Red
Tuesday Orange
Wednesday Yellow
Thursday Green
Friday Blue
Saturday Indigo
Sunday Purple
Geeky Camera Stuff:
Nikon d7000, 130mm, f6 1/50th