Celestron 44802 
The Celestron Large Handheld Illuminated Magnifier is a multi-faceted tool that can be used in a wide variety of venues. For the hobbyist (pro or amateur), it can examine everything from stamps and coins, to small details on fabric and stone. For jewelry, it can be used to explore faults and assist in repairs.
When it comes to home use, use it for examining cuts, and other skin ailments. And, if you're a outdoor enthusiast, in the field, it can aid in exploring plant-life, bugs, rocks and other wonders of nature. The handy 4x inset lens permits even closer examination of your subject.  
Excellent for hobbyists - coins, stamps
Can also be used to examine smaller items such as bugs, plants and rocks
Powerful tool for examining gem quality and engraving
As a medical tool, it can examine skin, cuts and abrasions