A few words on making the game pieces.
I made most of my game pieces by cutting them from the flexible magnetic sheet with scissors. This worked fine, but was tedious and time consuming to say the least. If you have a hole punch or similar tool to speed up the process I suggest using it, I certainly would have if I could.
Chess: I salvaged my chess pieces from another travel set I had lying around. If you don't have a tiny chess set to steal from, I recommend the original Altoids 'ible
. The author made some cool pieces using Fimo.
Go: A 9x9 Go board uses 81 pieces, so I cut out 81 octagons from the magnetic sheet. I think a hole punch may have been handy here. The magnetic sheet naturally has both a white side and a black side, so to differentiate pieces simply flip them over. The Backgammon pieces, Othello pieces, Nine/Twelve Man Morris pieces, and Checkers pieces are all just a subset of these 81 Go pieces.
Backgammon: Just 30 of the 81 Go pieces. I used the two extra Farkel dice to simulate a doubling cube.
Nine and Twelve Man's Morris: Just uses Go pieces as well.
Shogi: The square pieces I cut were too small to draw the Japanese Kanji on, so I just wrote English letter equivalents on them.
Chinese Checkers: I cut 60 small squares. Once I have a few good colored permanent markers I will color them to differentiate players.
Cribbage: 3 players with 3 pieces each = 9 pieces. I used little rectangles with symbols on them.
Farkel: All you need is six dice.
Checkers: Use Go pieces.
Othello: Use Go pieces.