The U.S. government is collecting donations to help pay off its $38 trillion debt.
https://blossom.primal.net/ed6367d758e840da6d0ab38cd1d6c0f1289037a64b8bd1fb59260fbeb0c12911.jpg
Minimum is $5 to cover processing costs, and max per transaction is $999,999.99 via some methods! These are unconditional gifts, no tax deductions or perks in return.