For the Father who thinks he already has all the tools there are: level cufflinks. We ran across this these today and couldn’t pass up telling you about them.
Yes, they’re indeed real working levels. The ones pictured at right feature green fluid in a rhodium plated silver setting. These particular cufflinks are available with green or blue liquid, but a variety of different finishes and colors are available. They even offer round (center) levels.
From Cufflinks.com, they’re $45 + shipping.
Working Level Cufflinks [Cufflinks.com]