Items Invented by Thomas Havel
- Jester Chess: Cutouts. Pieces to print to make your own Jester Chess set. Author: John William Brown. Inventor: Thomas Havel.
- Jester Chess. Large variant, with four new pieces including Jester that imitates opponents last type of move. (10x11, Cells: 110) Author: John William Brown. Inventor: Thomas Havel.
- Jester Chess. Featuring pieces that mimic last piece moved, archers that can either capture OR move. quadrapawns, and murray lions. Author: Jeremy Gabriel Good. Inventor: Thomas Havel.