The One With Chandler In A Box - S4-E8
Monica: Fine, judge all you want to, but [to Ross] married a lesbian, [to Rachel] left a man at the altar, [to Phoebe] fell in love with a gay ice dancer, [to Joey] threw a girl's wooden leg in a fire, [to Chandler] LIVING IN A BOX!
The One With The 'Cuffs - S4-E3
Joanna: What are you doing?
Chandler: I'm getting dressed.
Joanna: Why?
Chandler: Because when I go outside naked, people throw garbage at me.
The One With The Girl From Poughkeepsie - S4-E10
Rachel: No accountants. Oh, and no one from, like, "legal." I don't like guys with boring jobs.
Chandler: Oh, and Ross was like what, a lion tamer?
Answer: The painting doesn't have a name, and if it does it is never mentioned in this episode.