For the last 5 years, Massachusetts-based graphic artist David Laferriere has been drawing whimsical characters on his kids’ sandwich bags before packing them for lunch. Each drawing of the Sandwich Art series is made with Sharpie markers, then photographed and posted on flickr before David’s 13 and 15-year-old sons discover them at school.

French artist Thomas Lamadieu, also know as Roots Art, must really love looking at the sky, but for different reasons than you might think. Every time he looks up, Thomas sees a potential canvas where the building rooftops frame the sky. He photographs it and uses the odd sky shapes to create whimsical line drawings.

Seeing how popular his recent lion painting was, Hong Kong born artist Marc Allante decided to show the 25 years it took to get there. Starting with the portraits of his grandma (“oma”) and grandpa (“opa”), the stream ends with a fascinating colorful lion, drawn at the age of 25.

Even though Ramon Bruin has a degree in airbrushing, it’s his other skill that made our jaws drop. A Netherlands-based artist shows demonstrates how well he’s mastered the art of 3D illusions, all drawn by pencil. As he puts it, trying photo-realism was just another way for him to push his boundaries and add another technique to his portfolio.

It’s no tragedy if you’re still not blessed with an amazing view out your apartment window or Victorian-style furniture. Or at least it’s no tragedy to a British artist Charlotte Mann – she can draw anything she imagines on plain walls with a simple black marker.

Samuel Silva, a 29-year-old Portugal-based attorney, describes his artwork merely as a hobby, and Bic ballpoint pens – as only one of the mediums in his creative work. It takes time to believe that his drawings are not actually photographs, and then to absorb the information that they were created using only 8 different-colored pens.

This beautiful large-scale Snow Drawing piece was created by San Francisco-based artist Sonja Hinrichsen with the help of generous assistance of 5 volunteers on Rabbit Ears Pass, Colorado. It’s amazing how many hours were spent creating something so big yet impermanent as this work.