|I lost my favorite tape measure, and didn't realize until the afternoon I was to measure five people for costumes. It was the only one I owned with the stiff plastic on the end for measuring inseams. I needed one now and wasn't going to the store.
I hammered the female half of a snap onto the tape measure, around the two inch mark. I cut a piece of plastic from a bleach bottle, about two by five inches, and attatched the male half of the snap in the center. I snapped the tape measure to the plastic, and trimmed the end of the plastic to align with the end of the tape, and rounded the corners.
The female snap doesn't interfere with measuring smallish things, (like skinny wrists) and when I needed to measure inseams, just snapped the plastic piece on.