I don't draw many straight lines but when I do I want to use this. Rulers are so Century. Constrained ball is a drawing aid. attached to the pen, this device helps to draw straight lines without using a ruler. designed by giha woo.
I hate the way that some bandages really stick out on your skin - especially on the face. With the Chameleon Bandage – Band-aid Redesign by Xue Xing Wu, Zi Yu Li, Yue Hua Zhu & Zhi Qiang Wang, it will camouflage to your skin tone.
Don't have a paper? Use the pen and sprayer. Spray on hand, write note, peal off. Don't have paper- put it in your phone or try to remember it. if you are not carrying anything to write on, I guarantee you are not carrying spray on paper.