Summary

This is a stencil for a 10cm ruler you can paint on your forearm:

Instructions:

Preparation: A fine point sharpie and 20 cm of masking tape.

1) Put a piece of masking tape at each end of the ruler
2) Place the ruler on your non-dominant forearm and hold it in place with the masking tape.
3) Use a fine tip pen or sharpie to draw the lines, guided by the stencil.

4) You can use the cm section, the inches section or both!
5) If you use a sharpie, you can easily remove the ink from your skin with a cloth damped in Isopropyl Alcohol.

Enjoy whatever DIY you do.

I got this idea from Adam Savage, but I didn't feel like tattooing the thing on my arm.

About the design:

• This is designed for the LEFT forearm, although it can be used on either arm.
• The reason why the half-centimiter marks are closer to the wrist, is because I've found that part of the skin stretches and contract less, allowing better precision.
• If you wear a wristwatch, you may use it to keep the ruler in place while painting the stripes, allowing you to clear the first markings away from your watch.
• Version 3 has longer lines, version 5 has shorter lines for a less invasive ruler