An example of a 'thousand cranes' act would be the fundraiser called, "The Heart of a soldier"or "the story of Sultan and SFC Brian Assanowicz" where a community in NJ has come together to raise funds for a stray dog rescued by a U.S. soldier stationed in Afghanistan. in this example, the Vet-i-care division of NorthStar Vets in NJ has committed itself to saving this dog's life- before the funds can be raised.
another example of a 'thousand cranes' act would be to support this cause, if only to find the event flyer online and email it to a news station- which is much simpler than folding even a single origami paper crane and could be the single act of kindness to save a life.
2.) "An ancient Japanese legend promises that anyone who folds a thousand origami cranes will be granted a wish by a crane, such as long life or recovery from illness or injury." as published on wikipedia
3.) "the title of a book called "Sadako and the Thousand Paper Cranes by Eleanor Coerr, first published in 1977." which tells the story of a young girl stricken with leukemia by the bomb dropped in Hiroshima, Japan" as published on wikipedia
a 'thousand cranes' gesture would be to support "a Heart of a Soldier" or "the story of Sultan and SFC Brian Assanowicz" and help save the life of an injured stray dog found by a U.S. Soldier in Afghanistan.