Hexagonal quilts are very intricate looking, and can show off your quilting skills. Don't leave the quilt unbound, however; finish it off with binding similar to any other straight edged-quilt. It will take you longer to bind a hexagonal quilt, but it is not impossible. Make your own binding out of fabric strips, or purchase it premade from the fabric store.
Carefully cut a small slit in the corners where the hexagons meet. This will help when applying your binding. Do not cut through any stitches; the slits should only be about 1/4 inch long. Sharp scissors will help with this.
Lay your binding on the quilt; begin on the side of one hexagon, not on an inside corner or outside angle. Begin stitching using a 1/4-inch seam.
Stop stitching a 1/4 inch from an outside corner. Cut your thread and remove the quilt from under the needle.
Fold the binding back at a 90-degree angle from where you stopped stitching. This should be in a straight line in the opposite direction from you are about to stitch. Fold the binding back over itself on the new edge you are about to sew. Keep the fold in place with a pin. Begin sewing the binding down.
Stop sewing 1/4 inch from the inside angle. Pull the inside angle apart so it is a straight line; the slit you cut earlier will make this easy. Sew the binding down as you hold the slit open; it will be in a straight line.
Continue around the quilt doing both the inside and outside angles.
Flip the binding over to the back of the quilt and hand sew the binding down. Use small, even whip stitches to hold it in place. You may need to make a few stitches in the folds of the binding in the corners to keep them flat against the quilt. Trim any loose threads.