John Chamberlain, Untitled 1966, urethane foam and cord

from interview in The Foam Sculptures Book: JC and interviewer speaking about colored foam sculpture (similar to above):

JC:I don’t think that you can do a hell of a lot once they start to deteriorate (referring to foam sculpture)

CMC:Did you just throw color on it or spray color on them or soak them?

JC: I don’t remember.  I was drinking that day.

(Source: adamspuryear)