Well, I am nothing if not crafty and I love finding solutions to the strange little problems that creep into everyday life.
Case in point:
Both kids have become enamored of these "lap boards" - basically dry-erase boards for them to practice their writing. The problem is that they needed a way to erase but didn't want to keep track of a little cloth or anything like that.
So I grabbed a scrap of fabric (about 3 inches square), a cotton ball, and a rubber band.
Fit the cotton ball/fabric thingy around the end of the pen cap.
So far, so good. Though I have to admit that when I made one for Owen I decided to make things a little more rugged by replacing the rubber band with duct tape. Both versions are working like a charm!