I have a confession to make. We were new to the "real" vacation idea last year (as opposed to pArents treating or heading to visit family with day trips out).
We didn't realize we should tip mousekeeping. (we will this year) So, we didn't. not at all. We got 2-3 towel animals each day! We left with nine after our short trip. We did display them and had them with the DDs animals so the mousekeepers knew we liked them. . .
So, that said, I don't think tipping affects it at all. . . (as bradk said). . .
But, I'm seeing a trend, looks like POR doesn't have many CMs interested in making these. . .