Bibs come in handy for the messiest of meals, such as lobster, or for special needs children and adults. Finding adult-sized bibs can often be difficult, especially if the wearer is larger than average. Special-ordering these items can be expensive. Bibs for adults can be made inexpensively using materials found either around the house or at a local discount fabric store.
Draw a square or rectangle on the waterproof material, larger than the size that you want for your bib. Cut out the shape. Lay it over the top of the man's shirt and trace the shape onto the fabric with the pen or marker. The collar should be centred near the top of the square or rectangle. Cut the shape out of the shirt, ensuring you do not cut into the circular collar. The collar of the T-shirt should remain intact because the bib will just slip over the head with no fasteners needed. The T-shirt collar will be the collar of the bib, as well.
Cut a circle from the waterproof material that will line up with the collar of the T-shirt. Place the two shapes together, with the inside shirt material facing the inside of the waterproof layer (if there are prints on each material). Pin the material around each edge to prevent it from moving while sewing. Try the bib on someone to ensure it is long enough and the collar is wide enough.
Sew around the outer edges of the shape, and around the inner collar circle. Using a sewing machine, sew your seam 1/4 inch from the edge. If hand sewing, double back stitch (add an extra row of stitching) to prevent threads being pulled. Leave a 2-inch gap unsewn to facilitate easier turning right side out. Hem decoratively around the outer edges and inner collar to finish the piece and add more durability.