I volunteer at the McFarland Youth Center (WI, USA) to get a chess club started
with the middle schoolers.

The center bought a No Stress Chess set
( http://www.toysrus.com/buy/checkers/no-stress-chess-1091-2308976 )
which is ideal for the kids as they can easily be given a 'handicap' to enable
them to experience success early on and enjoy the learning.

One student borrowed the set for the weekend to challenge her father
(she was obviously psyched!) but in the process a pawn was lost.

The Design process explains how I was able to take measurements and
print a replacement part so the learning can continue.