I met a friend and some business acquaintances for lunch at the Teotihucán Mexican Café.
Shortly after receiving an excellent salsa and a basket of nice, fresh chips, I was served the iced tea you see below:
Note that it comes with a lemon, a spoon that is an iced tea spoon, and a straw for those who, unlike me, don't discard them immediately.
The only downside was that on refill – and I note that refills were readily obtained the whole lunch – the servers tended to slowly pack the glass with ice so it became hard to stir sugar.
Great food with the tea, by the way.