Transforming an ordinary toothbrush holder into a wonderful collage tool. A simple ribbed glass holder, coated in acrylic paint and rolled across paper, creates beautiful linear texture with depth, rhythm, and movement. The raised ridges grab just enough pigment to leave behind organic, repeatable marks that feel almost like hand-carved prints. This easy found-object printing technique is perfect for layering over vintage book pages, handmade collage papers, or sketchbook backgrounds when you wa

Brush all your teeth at once with this automatic toothbrush. | Mashable