A special addition to my puzzle collection is a wooden puzzle from Japan called The-T (Thanks to Jorma and Carla).
The-T is a wooden puzzle with just four pieces (a kind of Tangram). With the four wooden puzzle pieces you have to create a symmetric capital T (there are two solutions). You are allowed to rotate the pieces as you wish and even turn them over, but they must not overlap each other in the final letter.
You can find a printable version The-T puzzle from Puzzles.com. Another thirty puzzles for The-T puzzle can be found at WoodPuzzle.com Happy Puzzling!
Update : Wooden puzzle The-T is available from Puzzle Master Inc.