I've tried a few different ways of making handbags with magnetic snaps and this way seems to be the easiest for me. Let me know if you have any questions. I did want to add that I had tried plastic canvas as well and don't use it for a couple reasons. You could cut it in a circle and it would work great. I always did mine in a square and wondered why they always pokes holes eventually but it was because of the pointy sharp corners. The other side to working with plastic canvas in handbags is if you wash and dry them, the plastic will melt. The thick interfacing (not cardboard) is completely washable and dryable.
Now on with the tute.
(1) Set Magnetic Clasps (4 pieces total, two protectors & two clasps; see below)
Piece of thick interfacing or cardboard
*Reminder: If you are sewing a handbag, put the magnetic clasps in the lining BEFORE the bag is sewn together. This will allow everything to be neatly hidden (see illustration below).
Cut out 4 small pieces of interfacing or cardboard. Place magnetic clap down and draw circle around it about an inch out (see picture below).
Cut out circle. Place protector in middle of circle and using your pen/pencil, trace where the two lines are on the protector, onto the interfacing/cardboard. When done, cut those lines to create small slits. I did this by folding the circle in half where the lines were, and then cutting two small slits where the fold was.
Take your protector piece and line it up on your fabric where you want the snap to be placed. Be sure to go far enough down, leaving enough room for the seam allowance. Take your pen/pencil and trace the two lines again but this time onto your fabric. When done, cut those lines to create small slits.
You are now looking at the 3 pieces necessary to complete one side. The interfacing/cardboard cut out, the one side of the magnetic clasp and the protector.
Take your magnetic clasp and slip the prongs through the small slits in the fabric, making sure the prongs are coming out of the wrong side of the fabric.
Place your interfacing/cardboard over the prongs coming out of the wrong side of the fabric.
Place your protector over the interfacing/cardboard and over the prongs coming out of the wrong side of the fabric.
Bend prongs down so pieces all stay in place. (Please note, I now bend prongs inward instead of outward...this prevents the possibility of the prongs poking through the fabric.)
You are now ready to sew the rest of your bag or whatever you are sewing. Notice in the picture below that the inside of the lining shows what the clasps will look like all clean and professional looking.
This view is on the wrong side of the fabric showing what will be hiding in the bag once it is all sewn together.
Here is the completed bag with clasps all neatly done and above picture examples hidden inside the bag. I left just enough room between the edge of the fabric and the clasps so I could sew the seam allowance and the bag together.
Here is the completed bag closed.
I hope you enjoyed this tutorial. Thanks!