Highlighter with Pen Mount

Oftentimes I find myself using a highlighter and a pen at the same time, to take/make notes.

Now, there are products on the market that are a combination highlighter/pen, but they invariably run out of one ink before the other, thus reducing me to a) buying a new one and wasting leftover ink in the old, or b) using a replacement for whatever went bad in addition to the combo pen, meaning that I have two writing implements, meaning that I'm right back where I started.

Thus, a new product: A highlighter that has a mount on the side for pens. I envision two thin velcro strips running through small plastic loops on the highlighter - like a belt, I suppose. A cup on the bottom (writing side of the highlighter) holds the back end of the pen. Simply flip over and write with whichever utensil you need.

Prefer to highlight in red but write in black? Just stick in a black pen. Highlighter runs out? No bigs, the pen is as good as it was forty seconds ago. Pen runs out? Replace it, and off you go.

Also, far cooler than just using a rubber band.