My gramma gave me a little kit a while ago to make a thumbkin. The website written on the instructions does not work (www.louisvillenimblethimbles.com) but perhaps it is meant to be www.nimblethimbles.com which is a quilting guild in Louisville. Regardless, the explanatory poem reads:

It’s a simple little thing to use
Wherever you may go:
A place to put your pins
Whenever you choose to sew.

It’s a thumbkin and fits
On your thumb, you see,
And each time you use it,
I hope you’ll think of me.

And there you have it, folks!