©
chrstphre: WorkSheet for TriSecting An Angle
©
chrstphre: WorkSheet for TriSecting An Angle
©
chrstphre: Idea of Perpetual Motion Machine
©
chrstphre: Invention / Water Walker
©
chrstphre: Invention / PowerBoard
©
chrstphre: Invention / Hidden Stairwell
©
chrstphre: New Game
©
chrstphre: Hamster that Draws Pictures...?
chrstphre: Sling Shot Manuveur