OK Where's the Yarn?

I decided to do a couple of small projects on my little loom. I managed to find the loom and the heddle and some warp thread and got it warped. I found a shuttle with yarn on it that I could use. But needed another couple of shuttles so I can do stripes.

In the meantime, I took a ball of yarn that was the right color for a stripe. Put it on my desk.

It took several days to find the small shuttles that had fallen behind the desk. I was thrilled to find several the right size for the little loom. Now I can't find that ball of yarn.

I won't mention what my desk looks like....