Furniture maker Greg Klassen builds intricately designed tables and other objects embedded with glass rivers and lakes. Inspired by his surroundings in the Pacific Northwest, Klassen works with edge pieces from discarded trees (often acquired from construction sites, or from dying trees that have begun to rot) which he aligns to mimic the jagged shores of various bodies of water. The pieces are completed with the addition of hand-cut glass pieces that appear to meander through the middle of each table. You can see much more of work here, and several tables are available through his shop.