I name machines using the name of the town they come from. A few sampes:
-Chippawa (Chippawa Falls)
-Cloud (St Cloud)
-Blaine (Blaine)
-Rose (Roseville)
-Shore (Shoreview)
-Ulm (New Ulm)
etc
I find it fun doing it that way, every name brings back memories of the previous owner. I remember interesting things the owners told me when I picked up the sewing machine.