danfruzzetti

Marker-Minder - Whiteboard / Mr. Sketch / Flipchart Marker Quick-Draw Cap Clamp

Leatherman Multi-Tool Bit Set Case / Enclosure

Simplified Sprues v4 which print effectively at any scale.

Manipulative snap-together sprues to create polygons, polyhedra, molecules etc

Snap-Together Sprues which can be used to teach about triangles and other polygons in a high-school Geometry classroom