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**Drawing with Everyday Objects**  In addition to allowing the user to flip through photos and rotate them, Piknik will also offer the capability of drawing on existing photos using magnets. However, instead of just using magnets, we will be embedding the magnets in styluses (acting as paintbrushes) to allow the user to have a more natural interaction with the application. "I/O Brush" I/O Brush  \cite{Ryokai_2004} is similar idea, it is a drawing tool aimed at young children to be able to draw with everyday objects. The authors of I/O brush built a device that can select the color from anywhere in the real world and be able to paint with that color on the tablet. It molded its every day object as a brush so users can easliy create the mental mappings and seamlessly work with the every day objects. BlowBrush \cite{Shen_2014} is another idea that looks into into tangible painting systems using a windmill. A user can blow on the windmill to paint leaves or other objects on screen. BlowBrush used this criteria to analyze and study the effectiveness of their application. This criteria is consisted of: methaphorical ffordance, enjoyable engagement, tangible manipulation, spatial interaction, embodied facilitataion, and expressive representation. As we are developing this application, we need to look into the criteria that BlowBrush used to analyze their own system.