Write a letter to one of:
the CEO of a large corporation, the owner of a small business, or the leader or a government department, a public institution or a military unit And ask him or her to support a registered charity or some other worthy cause of your choice. Either ask for a monetary donation (to be sent directly to the charity) or for some other form of support such as volunteer time (their own or their employees), corporate sponsorship (for an event or project) or a donation of some of their products or services.