It's too bad they're so expensive - but I understand why they are.
The latest one I've seen is just a really slick idea: http://www.woodcraft.com/product/2084361/44608/woodpeckers-onetime-tool-mt-center-gauge--aluminum-arms-with-case.aspx
A center marker/mortise & tenon marker. I love it when you have a tool that doesn't require all the fiddly measuring and automatically adjusts to different sized work.
The latest one I've seen is just a really slick idea: http://www.woodcraft.com/product/2084361/44608/woodpeckers-onetime-tool-mt-center-gauge--aluminum-arms-with-case.aspx
A center marker/mortise & tenon marker. I love it when you have a tool that doesn't require all the fiddly measuring and automatically adjusts to different sized work.