Multi Art Pen Design Concept

This is just a concept design for a multi functioning art pen. One of the things that annoys me is when i am out and i just want to do a quick drawing but don't have the relevant equipment with me.

So this design concept is my answer to that problem. The pen has 8 peices of art equipment that i find useful, but are about 40% smaller in length than the full size ones.

The top half has a scalpel, paint brush, white pen, and eraser. The bottom half has 0.35 rotring pen, 0.5 mechanical pencil, medium black marker and a pencil sharpner in the middle. This is just what i like to use so is what i have put in there. The equipment is also about 40% shorter in length than the full size ones.

I had made a plasticine mock up to see what would fit and was the most comfortable shape to hold in your hand. Which lead me to this particular curviture shaped shell. It is not meant to be an alternative to the individual size ones but just a more portable and quick to use short term solution.

The drawing was done on an A2 card using magic markers and rotring ink pens.