As promised, here is a tutorial for the Santa Sack I made on the weekend.
Mine came out about the size of a regular pillow case, but you can of course make it any size you want. The sack has french seams so there are no raw edges and you don't need an overlocker/serger to create a nice finish.
It might seem like a lot of steps, but they're all very simple and quick. All the images can be clicked to see a larger version.
Materials needed to make the same size as mine:
1/2 yard of main fabric
fat 1/4 of trim fabric
1. Cut your half yard of fabric (if it isn't already cut) and trim the selvedges. Lay it on the table folded in half with WRONG sides together. In the photo below, the fold is on the left side and the edges where the selvedges were are on the right.
2. Cut two pieces of your trim fabric to be the same width as the main fabric and as deep as you'd like, plus 1" for seam allowance. My rectangles were 18" x 6-1/2".
3. Sew the long side seams of your main fabric with a 1/4" seam.
4. Turn your sack inside out and push out your corners. Press the seam flat ensuring the stitches are rolled out as far as they go. You should be able to see the stitches in between the two layers of fabric.
5. Stitch the side seam again, this time using a seam allowance large enough to enclose the previous seam allowance. In my case this was 3/8" but you can make it bigger if you need. Do not turn your bag inside out again. It should now be right-side on the inside.
6. Join the two rectangles of your trim fabric together. To work out the seam allowance you need to add together your seam allowance from step 3 and step 5, then add a tiny bit. In my case this is 5/8" and I lined my fabric up just over the 5/8" mark on my machine to add the tiny bit.
7. Press the seams open and press under 1/2" along the bottom edge.
8. Pin the trim fabric to the outside of the sack at the top. This means that you are matching the RIGHT side of the trim fabric with the WRONG side of the sack. Match up the side seams and pin in place then stitch around with a 1/2" seam allowance.
9. Pull up the trim fabric, and press the seam allowance down into your sack.
10. On what is currently the outside of the sack, do a row of understitching along the sack edge, close to the join with the trim fabric. This should be sewn through all layers (including the seam allowance at the back).
11. Turn your sack out the right way and fold the trim fabric over the top. Press well to make a neat edge.
12. Topstitch down the trim fabric along the bottom edge, close to the fold. (I actually turned my sack inside-out again to do this step as I couldn't be bothered to set up the free-arm)
13. Give it all a good press, and you have a Santa Sack ready to be filled with surprises.
Let me know if you make one, I'd love to see the finished products!