I bought a Featherweight last summer and have a cardboard box of attachments.
However, someone posted a Featherweight for sale today on this board and I am wondering what the green plastic case is used for.
http://www.quiltingboard.com/t-87298-1.htm
I also have that case which was not purchased with the Featherweight. I thought it was some type of cams but wasn't sure what machine they are for or exactly what they are.
Any help would be greatly appreciated.