Plastic Extenders For Machines
 

I was watching a video about free motion quilting and the young woman, I think her name is Leah, had this on her machine. What is the name of that and where are they sold?

is this what you are looking for?
http://www.allbrands.com/products/ab...ogle&ovtac=CMP

This is the one I have: http://www.sewsteady.com/
They make them for many machines. All Brands carries them, also you can check with your dealer, as your sewing machine company may also make them. If you know someone handy, they can also make one out of MDF, but I REALLY like the clear acrylic to store notions and find them!

Well worth getting one to custom fit your machine. They can also double as a light box by putting a lit bulb under the acrylic and tracing on top of it.

I got mine from Allbrands and was really pleased with their service. At the time, they did not charge for shipping. Three of us got them at the same time, three different machines. Three different configurations depending on machine.

Connecting threads has them on sale in their latest catalog, too. I also would not be without it!

My Bernina came with a small extension table. However, if you are looking for a better surface for FMQ, especially for larger quilts, you might want to think about making this kind of extension surface for your machine (parts 1 & 2):
http://www.youtube.com/watch?v=g14go...ure=plpp_video
http://www.youtube.com/watch?v=yAS25...ure=plpp_video

Dh built mine for me (it was a little more complicated because of height and shape of my sewing machine), and I really like it for machine quilting. For piecing, though, the extension table that came with my machine works better.

My brother came with one, I also use it for a light box.

If it's Leah Day's site that you saw, she uses a Janome Horizon and it comes with the acrylic table. My older Janome 6260 came with one too.
Check out the sites others have given for Allbrands. They can send you one customized for your machine
I love mine and seldom sew without it. I even take it with me to classes.

MY DH made me one after he saw it in the store, I love it....