Fill laundry bag with quilt stuffing. Pull out the string and tighten to proper size
Thread that same string through the arches you see here, then open up and stuff leftover laundry bag in your hand, stuff in the hole. Then pull tight and tie a knot. Cut excess
Stuff into your shirt
While your wearing the shirt, have someone help fold the fabric into triangles and pin top and side. Glue like crazy and slide out of it and let it dry. Not scary! Sexy!