There are 'generif' feet which will fit, I bet. The walking foot and darning foot from my new Janome (2010) fit right on my old Elna (1966).
the walking foot has a big presser foot with a second (ridged) foot on top of it, which galumphs along up and down, in concert with the feed dogs below, moving the fabric along in time with the needle going up and down.
The darning foot has a little roundish foot with a spring on its shank, which gets the foot going up and down. You use that foot by setting your stitch length to zero and moving the fabric back and forth yourself - see Leah Day video!
Generally the ones I've seen - walking foot and darning foot - have a lever which you have to put on top of the needle-holder bar which has the needle screw in it. Be sure to screw in your needle very tight and be sure the lever isn't landing right on the screw, or you will find you get started and then ZAP your needle falls out.
Have fun!