I've got two Singers. They are sewing machines and not really worth very much.
But do know how to use them. Made these seat belt pads with Porsche Logo embroidered patches...
The young lady in the photo, Joy claimed she could sew, but could only sew together one pad to my 4.
Made 60 sets given away as door prizes at the Porsche Powwow car show the local PCA hosted.
Worked great for tightening and locking down your seat belt for autocross, and making the shoulder belts more comfortable in general.
The logo usage rules at the time were that local PCA chapters could use the Porsche logo, but could not put anything near the logo and could not sell anything with the logo on it. Chapters were not even allowed to use the Porsche logo in their own club logo. The PCA even had to re-negotiate the usage of Porsche in Porsche Club of America every few years.