Apparently "Dairy Queen":https://www.equestriadaily.com/2021/09/dairy-queen-in-mexico-is-running-izzy.html isn't the only place hopping on the pony bandwagon with a special dessert in their honor. Two sweet focused companies have also tossed up pony promos, first with the "Great American Cookie Company":https://www.greatamericancookies.com/ rocking a cookie cake design and DIY set of cookies for people to decorate on their own, and second with a creamy called "Marble Slab":https://www.marbleslab.com/ with a a rainbow inspired ice cream complete with waffle cone covered in sprinkles.

Both places have locations around the USA if you check their store locators. I've popped more images of their stuff below!