Oh so close to the finish line

I've been working on the knit hat in the evenings. If my wrists hurt then I put it down. Some evenings they didn't hurt and as you can see, I got a lot of rows done. However, do you see that little stub of yarn poking out to the left? That's it, that's all that I have left of the two skeins. Am I finished? No! I still have this row and two more to do before it's officially done. I'm short by less than a yard probably. Yikes! So I'm trying to figure out what I should do. I really don't want to buy another skein because I'm not sure what I'll do with the rest. I'm wondering if I should just use a little bit of the blue Aran wool that I have from Ireland and not worry about it matching the greens. It may look interesting. What do you think? How do you like my solution for a row marker?