We didn't get a chance to go to Tonala on July 25th for the Tastoanes event, but it turned out that they have a women's Tastoanes the Friday evening afterward and masks on display so we went on the 31st of July. It turned out to be an amazing trip.
We went to several different museums first in search of the display and after being redirected several times, I'm not sure we actually found the real thing but we saw plenty of masks. Also, we went back to a museum we'd been to before that had masks, but when we saw them then, we didn't know what we were seeing. The actual event was crowded, as expected, and it was hard to see what was going on, but it was still worth going to (and, I imagine a lot less crowded than July 25th was).
They delayed the start of the dance until 8 because there was a national ceramics award festival going on that night too so even though I voted for street food on the plaza, the other two voted for a real restaurant which turned out to be a good choice. We liked the plates the restaurant used and, this being Tonala, we asked where they got them and they gave us a tourist map showing the location of the workshop and store. It was closed when we stopped by, but the tourist map also had a mask maker advertised in it. It was rather late when we got there but the mask maker was happy to have us come in. More on that later too.
Also, they had the hand-stretched churros for sale in Tonala. We asked about them and they told us that they're the thing in the highlands of Jalisco, in the eastern part of the state and specifically mentioned Tepatitlan. That explains why they're not well-known, but also why we've seen them on the eastern side of the city. More on that later.