See also lists

* HTTP 418 (I'm a teapot) [0]

* Not a Typewriter [1]

* PC LOAD LETTER [2]

What else is out there?

0: https://en.wikipedia.org/wiki/Hyper_Text_Coffee_Pot_Control_...

1: https://en.wikipedia.org/wiki/Not_a_typewriter

2: https://en.wikipedia.org/wiki/PC_LOAD_LETTER