LAS VEGAS -- An anonymous Las Vegas casino owner has struck again - this time with a $1 million donation to help needy people.

The cards were delivered as a surprise to people the United Way and its partner programs determined needed them most.

The plastic cards become as good as cash when they're signed and can be used for anything.

It's the second time the same anonymous person has made a $1 million donation to the United Way.

The first came in December. The only difference is that this time the donor's nickname was Summer Santa instead of Secret Santa.

To read more inspiring stories of anonymous donors, click through the slideshow below.

SLIDESHOW:

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  • Anonymous Donor Gives $25K In Toys

    Hope was renewed after an alleged thief stole the money from Chicago's Toys For Tots Foundation. To help replenish the supply and ensure Christmas joy for the thousands of area children the organization reaches, <a href="http://www.chicagotribune.com/news/local/breaking/chi-embezzlement-may-mean-fewer-toys-for-tots-20111220,0,7505109.story" target="_hplink">a generous donor gave $25,000, the <em>Chicago Tribune </em>reports.</a> His only request? To remain anonymous.

  • Anonymous Donor Leaves $10K On Doorstep

    Money was inevitably tight for Maria Vargas, who spent her life's savings on monthly treatment as she battles Stage Four cancer. But that changed when Vargas received an anonymous check for <a href="http://www.ktvu.com/news/news/struggling-cancer-patient-receives-10000-check-bag/nFz4w/" target="_hplink">$10,000, left in a sack of avocados on her doorstep, KTVU reports.</a> The family had been protesting outside of a Kaiser facility, claiming misdiagnosis allowed a tumor to grow out of control.

  • Anonymous Donor Gives Kids 1,300 Bikes

    If you ask a child his ideal Christmas present, you're likely to get a resounding answer: a bike. One donor in Oregon has been making that a reality for the past decade. In 10 years, he's given out almost 1,300 bikes <a href="http://kdrv.com/news/local/234007" target="_hplink">KDRV reports</a>. He's remained anonymous and is simply referred to as "Bike Santa."

  • Anonymous Donors Pay Off Layaway Bills

    Anonymous donations have caught on at stores across the country. Kindhearted Secret Santas are paying off remaining Kmart layaway balances for families nationwide, <a href="http://www.huffingtonpost.com/2011/12/16/kmart-secret-santas-pay-strangers-layaway_n_1153210.html" target="_hplink">the <em>Associated Press</em> reported</a>. These Santas have started spreading the love to other stores as well, hitting up Wal-Marts in Joplin, Mo., according to the AP.

  • Anonymous Donor Gives Shelter

    Sometimes gifts for children don't come in the form of a firetruck or a new doll. An anonymous donor paid for an extended motel stay for Kim Artis and her 10-year-old daughter and 18-year-old disabled son as holiday budgets threatened to put them on the streets, <a href="a href="http://www.sj-r.com/top-stories/x2105827220/Anonymous-donor-helps-woman-children-avoid-homelessness" target="_hplink"" target="_hplink">the <em>State Journal-Register </em>reported. </a>