The annual RFK Center spring auction is in its final day, with online bidding closing tomorrow. Do you want to meet Oprah, have lunch with Robin Williams, win an internship with a famous magazine, or score a pair of seats atop the Red Sox dugout?

Thirteen pages filled with celebrity donations and enriching experiences have tempted visitors to the Web auction that raises money each spring in support of the Robert F. Kennedy Center for Justice and Human Rights. An A-list of athletes, politicians, celebrities and corporations have created items that offer an instant dream-come-true for the highest bidder.

One of the unique opportunities at the online auction (hosted at www.charitybuzz.com/rfk) is the range of internships available. You can launch a new career with an internship at the Huffington Post, National Geographic Society, Esquire or Diane Von Furstenberg.

A walk-on role in the next Ben Stiller movie will cost you more than a meeting with Oprah — both garnering bids over $17,000. The current bid for lunch with Martin Sheen is $2,300, while VIP tickets to Elton John's Oscar party will top $15,000. 28 people have bid on two tickets to attend a White House Christmas Concert hosted by President Barack Obama and the First Lady, with the current bid at $9,250.

"By bidding on these incredible experiences, people will be supporting cutting-edge human rights defenders from around the world, including those fighting for the right to water and reconstruction in Haiti, the victims who still suffer after Katrina, farmers' rights in the U.S and much more," said Kerry Kennedy, founder of the RFK Center's Speak Truth To Power.

Last year, the Center's 2009 spring auction raised a record amount for vital human rights work.  The auction is closes tomorrow. (Visit CharityBuzz to see the auction.)