Think about any directional prints that you use - no one likes to see an upside down bird on a bag!
I cut my tape with (very) sharp kitchen scissors. If you find that someone 'helps' you by pushing the lock off the tape that you have stuck out from your metal measuring tape, so that the end disappears into the tape cover, don't worry. There is usually just one screw to undo in order to expose the rest of the tape and the spring.......go on, guess how I know!
Whichever you choose, you will want your smoothest side to be on the plain side of the tape, the least smooth side on the numbers (concave) side to get the best finish later on.
Finally you can fold your fabric into it's finished shape and sew all around it. I haven't got a photo that show it well, but you need to make sure that the outside seams from the top to the bottom of the tape 'pockets' that you have just sewn are really strong. Although I thought that Zig-zag was quite nice, straight stitch would work just as well.
As you sew around the square you will sew over the two openings at the bottom - just make sure that you seam allowances are folded in properly when you are sewing them.
Ta-da! You have a finished snap bag!
I hope that you enjoy anything that you make. I think that smaller would be successful, but if you were making an opening that was bigger than this you might want to use a double thickness of tape to make a stronger 'snap'. Just make sure that you get the pieces facing the same way so that they work properly still.
Of course, if you are Gill, you are the lucky winner of this example, so you don't even have to raid your tool box to get a snap bag, I'll be sending this one to you!
I hope that the rest of you enjoy the tutorial. Happy snapping!