Materials for one pillow:
- 10 jelly roll strips (a single strip is ~2.5" x 44" long)
- Lining fabric, enough to cut one 17" square (I used regular cotton fabric)
- Backing fabric, enough to cut two 12" x 16.5" rectangles (use a thicker fabric, like Home Decor fabric).
- one 16"x16" pillow
Step 2 - As shown below, take one strip and line the pressed seam along the bottom of the 17" square lining. Pin to keep in place. Using a 1/4" seam allowance, sew along the non-pressed side to attach the strip to the lining (the pressed seam should be facing the edge of the 17" square lining, as shown below).
After you've sewn the first strip on, mark 3/4" starting from the top of the non-pressed side of the strip. Continue marking 3/4" all the way up the lining. Click image below to enlarge.
Step 3 - Sew the remaining nineteen strips (that you cut from step 1) onto the lining. Simply line the non-pressed side along the 3/4" mark you made in the previous step, pin to keep in place, and then sew using a 1/4" seam allowance.
Step 4 - After you've sewn all twenty strips onto the lining, flip it over and trim the ends using a ruler and rotary cutter so the strips are flush with the lining. It should look like the picture below.
Step 5 - Using a rotary cutter and ruler, cut a diagonal line as shown below. This will give you two half square triangles.
Then, sew both half square triangles together again: with right sides facing together, pin to keep in place and sew along where you made the cut using a 1/4" seam allowance. Press open.
Step 6 - Prepare the pillow backing: From your home decor fabric, cut two 12" x 16.5" rectangles. For each rectangle, do the following.
Along the length, turn the edge 1/4" under, press, then turn under 1/2", then press again. Stitch to keep in place as shown below.
Step 7 - With right sides facing together, take one backing rectangle and line it along the left side of your pillow cover. The finished seam you created from the previous step should be facing toward the right. Pin to keep in place, then sew along the perimeter as shown in red below, except where the seam is. Start and end your stitch with a back stitch.
Repeat, but on the right side instead.
Lastly, turn right side out through the opening and that's it!Let me know if you have any questions. :)