“The art of writing symbols that say where you’re working from.” The original was WFH, Working From Home. Following that pattern, then, you might get:
WF(O<-<)
Working from a bath
WFgl___/
Working from a boat (with an outboard motor)
WF§-__/
Working from a boat (with a more serious motor)
“WF ”
Working from space
WF=====
Working in a linear accelerator
…
(Via New Scientist and Language Log, which has an interesting discussion of trying to work out what the best neologism for these ASCII art variations should be)