You *can* get different feet for those machines.
However, I have a machine from 1933 and the foot that is the "default" suffices as a zipper foot.
If you don't have one that works, you might have to sew it by hand.
Disclaimer : This post written by a Grumpy Old Man
Actually in the pipes:
- Remaking Ser Loras doublet.
- Luke Skywalker, A New Hope
- Wind Waker starter costume in swim material
Eventually: Paul from Dune, Faramir, Harry Sullivan