"Secret Santa" has struck again, dropping $50,000 in a Salvation Army kettle in Missouri.

Two bell ringers made the discovery as they counted their totals last week after standing outside a Walmart in Joplin, according to ABC News.

The five $10,000 checks had been wrapped inside dollar bills.

The person or persons behind the donation remain anonymous, as they have been for the past decade.

"It's never the same person and our bell ringers can't ever tell you who it was who put the money in because it's usually wrapped in bills," Salvation Army Lt. Jamie Curry told ABC. "It's always wrapped in a way that we would know it was from 'Secret Santa.'"

Curry estimates "Secret Santa" has given at least $500,000 over the past 10 years.

"You can imagine how many people we've been able to help with all that," she said.