After the game they auction them off and all the money goes to Plunket.
The Royal New Zealand Plunket Society is an incorporated society[1] in New Zealand which provides a range of health services to healthy babies and young children. The Plunket Society mission is "to ensure that New Zealand children are among the healthiest in the world".
The society is most commonly referred to in the community as "Plunket".
As described by wikipedia.
They have done this last year, not to sure about the year before.
http://www.plunket.org.nz/news-and-research/media-releases/bnz-sidelined-in-super-rugby-jersey-swap/ for more infomation.
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