Barbie Doll: A Broader Understanding

After reading "Barbie Doll" by Marge Piercy I had many questions concerning the last stanza. "Her good nature wore out/like a fan belt/so she cut off her nose and legs/and offered them up" (l. 15-18) These lines indicate a possible suicide, and have a sacrificial tone to them. At first I wasn't confident in the idea that the girl did indeed commit suicide nor did i feel positive Piercy intended to convey a sacrificial tone. Although, as I looked into other possible meanings to these lines such as cutting and plastic surgery the message became apparent, and once considering the context of these lines and all possible messages, suicide and sacrifice make the most sense. The context in this poem seems to be very significant in the writings' over all understanding, "In the casket..." and "with the undertaker's cosmetics..." (l. 19-20) struck me as concrete evidence for her suicide, rather than the idea of cutting or plastic surgery.
What I found most interesting about "Barbie Doll" was the sarcasm laced throughout, along with a more vulgar and tragic tone towards the end. The tones of vulgarity and sarcasm in a poem entitled "Barbie Doll" inspire a high interest in learning more about Marge Piercy, and I intend to look into her background, and become more familiar with her poetry.