First cut the long strap piece. It should measure 36 x7 inches. The seat should measure 19 by 11 inches. The connecting tab will be 4 inches by 5 1/2 inches.
We’ll sew the connecting tab first. Put right sides together, then batting. Sew the longs sides of the tab using a 5/8 seam. Leave the short sides open. Turn right side out.
Layer the seat pieces with batting on bottom and right sides of fabrics together. Now we’ll measure the opening for the connecting tab, which will go in the middle of a short side of the seat piece. Then pin around the perimeter of the fabric to hold it together while sewing.
Round off one of the corners. Then, fold your fabric and use the rounded corner as a template for the other corners so they’ll match. Now sew the fabrics together, beginning at one pin and sewing until you reach the other pin.
Remove the pins and turn seat right side out, then iron the seat and connecting tab. Insert one end of the connecting tab an inch into the opening on the seat. Sew the tab in place using a quarter inch seam, and continue topstitching around the perimeter of the seat.
Layer the batting and fabrics for the strap piece. On a long side, place a pin 4 inches in from the edge to mark an opening for the tab. The other pin is placed 6 and a half inches in from the edge. Pin the fabrics together. Round off the corners as you did with the seat piece.
Begin sewing at one pin, and continue sewing until you reach the other pin. Remove the pins and turn right side out, then iron.
Insert the loose end of the connecting tab into the opening on the strap piece. Sew in place using a quarter inch seam, and continue topstitching around the perimeter of the strap.
Now we’ll add the velcro. Sew three inches of rough velcro in the middle, on the long end of the interior fabric. Sew around the edge of the velcro.
Cut five inches of the fuzzy velcro. This will go in the middle of the short end, on the exterior fabric. Sew in place.
To use, weave the straps around the slats of a chair. Loop the strap around to velcro in back. The seat piece goes inside of the loop and creates a flap over the strap piece.
Always use adult supervision. As with all handmade baby products, use common sense and make safety a priority.
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