I've been interested in mathematical puzzles for a long time, and now I've gotten the opportunity to make my own puzzles out of lasercut acrylic. If you're interested in these puzzles, you may also want to look at my main recreational mathematics page. I am also keeping a blog that is mostly on the subject. Puzzles currently available for sale include:
Ten pieces contain up and down pointing outer slots and deep and shallow inner slots in every possible combination. The slots join to form an approximately 2.4" wide ten-pointed star. (Shown here are one solved puzzle and the unassembled pieces from a second set.) $5
L-topia contains 12 L-shaped pieces with circular and square holes in various positions. A number of challenges for positioning the circles and squares are provided. More info on some of the things you can do with the set is available here.
These pieces can make four layers of 4 by 4 squares. Try to get the arrows all pointing the same direction!
Eight pieces that assemble into the configuration shown.
The arrangement of pieces here gave me the feeling of a Southwestern motif. As a bonus puzzle, the pieces can also be assembled into an eight-pointed star. (Shown here are one solved puzzle and the unassembled pieces from a second set.) In blue only. $9
[Picture coming soon]
For serious pentomino fans, these 21 pieces comprise every way of stretching out a pentomino so that the squares they are made from become rectangles. The pieces fit into the provided box in three square layers. A blog post about this set, with a solution, is here. In dark red only. $16