Anyone familiar with tatting?

I'll admit, I'd never heard of tatting until about a month ago, when Barb showed me some things she'd been working on.

Tatting is a process of making stitches composed of half-hitch knots. A single thread is looped and knotted with the aid of a small shuttle, and the results are intricate and beautiful!

Barb had tried tatting 25 years ago, and this winter decided to try it again. I guess the second time's a charm because she's hooked! Here are some of her completed projects:

Earrings:

A doily for one of my Finnish treasures (a large "Iittala Kivi" votive):

A heart doily for her daughter Liz for Valentine's Day: 

And most recently, some beautiful handmade note cards:

Check out the detail on these!

They remind me of a fun project in the Beginner's Guide to Needle Felting that we received recently:

 What other crafts do you like to do besides knitting and crocheting?