A thong is a small, triangular piece of cloth that covers the front genitals and is attached to a string or lace that goes between the buttocks. Both pieces are attached to a matching string or lace on the hips. Thongs are worn by men and women. However, branded thongs can be expensive, $20 to $30 at popular stores as of June 2011. You can make a homemade thong with a piece of cloth, elastic and lace.
Measure the area from where your underwear starts under the navel, to the end of the genitals. Cut the cloth in a triangular shape according to the size of your pelvis. Cut a much smaller shape (heart, triangle or square) of your choice about 1.5 cm in width.
Place the cloth in position on your pelvis. Measure the distance from one end to the other across your hips. Measure the distance from the bottom edge of the triangle to the end of your buttocks crack. Cut the two portions of the elastic ribbon according to your measurements.
Position the two ribbons in place and secure their edges by sewing them manually or with a sewing machine. Attach the one that goes through the buttocks crack to the smaller shape. Connect this to the elastic band on the hips.
Cut lace a little longer than your previous measurements. Place this onto the elastic band. Sew the lace onto the elastic loosely by putting a finger in between each stitch so it doesn't stretch when you wear it.
Add buttons, glitter, rhinestones or even spray a name through a stencil to finish.