He did loads of commercial work which the art world hated him for.
I'm lead to believe.
( Wildheart Baby. Drunken Mess In A Good Way, Mon 25 May 2009, 12:46, archived)

well breton did say he'd do anything for money "Avida Dollars" and all that
he did the chupa thing as a favour to an old school friend..
i know he did the castros' favourite cigar (forget its name yellow/black squares) logo but i can't think of anything else
(rigby happened on (and with added toothache), Mon 25 May 2009, 12:57, archived)