That left Wickbom to pick people at random. The recipients were young and old, men and women, couples and the occasional group, in most cases for coffee.
He hadn't kept count of the number of people who had benefited but the cash would have covered more than 200 coffees. The money was now almost all used up.
Wickbom said customers' reactions varied.
"Some people just stand there and stare at you. Everyone's grateful, but surprise, in a positive way, is the most common reaction. I haven't had too much abuse about it, put it that way," he quipped.
"It's a nice feeling. Even though it's not from us, it feels good to pass something on."
It wasn't the first time a customer had paid it forward, but usually it was for one coffee at a time.
All Wickbom would say about the mystery benefactor was that he was a "very relaxed, cruisey" character.
Similar gestures have reportedly occurred at other Kerikeri businesses in recent weeks.
In 2017 another mystery man - or perhaps the same one? - left a pile of cash at Way Cup on Kerikeri Rd to pay for the next 30 customers' coffees.