I'm sure I'm the LAST person to find this thing but It's changed my life. For those who don't know, this is a contour gauge. It's used in carpentry but it's also great for matching angles and curves for all sorts of scratchbuilding. It has saved me many hours of testfitting and re-trimming.
![BestToolEver.jpg](http://dualityentertainment.com/mike/MISC/BestToolEver.jpg)