The Interlocking Tile Pieces are a snug fit but can be easily taken apart and assemble into a different game.

Example: Volume 1 - Standard Chess Board [Update 9/30/2010]
Print 2x ITG_EEII in Black for Corner Tiles
Print 2x ITG_EEOO in White for Corner Tiles
Print 12x ITG_EIII in Black for Edges Tiles
Print 12x ITG_EOOO in White for Edges Tiles
Print 18x ITG_IIII in White for Inside Tiles
Print 32x ITG_EEEE_Insert in White
Print 32x ITG_EEEE_Insert in Black

Snap together White Tiles and Inserts
Snap together Black Tiles and Inserts
Assemble your chess board (see example pic).

[Update 10/05/2010] Just added ITG_EEEE_Z25_InsetLidTop that snaps into the base and forms a small box. Doing this completely blocks the bottom tile color so you loose the inlay effect. good news is that you could print all the interlocking basis in the same color and just print the inset box lids in different colors.