The classic Cockny consonant substitution in Dickens's early years was "v" for "w" - as in "Sam Veller" for "Sam Weller" ("The Pickwick Papers").

Another example, perhaps, is the song title "Villikins and his Dinah".

Returning to the thread topic, there used to a two road signs, one above the other, at a road junction in Lancaster, reading:

CREMATORIUM
ONE WAY STREET