Both my machines a Singer and a Janome have that little lever where the foot pops off and you can put a new one on. I did find out that for the darning foot and the walking foot that whole assembly comes off.

On the Janome Jems, it's so easy to change the foot that I sometimes take it off without meaning to... The release is where a different feature is on my usual machine (a Bernina) and I reach back and hit it, lol.

Pfaff feet snap-on. I have 2 Pfaffs, the feet can be used on either machine. I love my Pfaff.

My Pfaff has snap on feet. Except the darning foot. I love snap on. So easy.

I have snap on except for the quilting and walking foot. My machine has good size thumb screw, one you use a screwdriver on and the other does have slot for driver. My sister's machine has that tiny screw about the size of the screw that holds the needle in. I hate that.

I have two Janomes - both of them of the snap on feet. One has the walking foot that you put on and the other janome has the walking foot attached which is quick and very easy to use. Love that feature.

I have a singer, have never changed the foot.

So by snapping on the feet... is it something that you could break? Or it could come loose if you don't snap it in sufficiently? I'd need to see it... I'm imagining myself breaking it while trying to unsnap

Lol, good solution :D

I think so. :-P