They make them in all the resorts, but it just depends on the mousekeeper you get. We have stayed at Pop three times. First time, we didn't get a single towel animal. Second time, I asked three times, left a note, etc and we got one the last day finally. This past trip, we had a towel animal when we checked in and we got one every day after that. I did leave a decent tip($5 a day for just me and DS13) and I left $15 when we checked out. I don't know if tips make a difference or not, but she did a great job and I was happy to tip her.
BTW, we stayed in the non-preferred 70's building behind the big wheel. I am requesting it for this year as well.
Marsha