I just got an email about a tool that may be a new copy of an old tool.
It will be in the whatsit someday
Frog Gauge
http://www.transalert.com/cgi-bin/details.cgi?inv=MSFROG&cat=21&utm_source=web_blast&utm_medium=email&utm_campaign=3_13_14_Track
Hehe, I wasn't sure what a frog gauge was, but that's not what I was expecting to see
you were expecting a round dial rated for "croaks per minute"?
That, or a bin with a series of ever larger frog-shaped holes in it to make sorting them easier