"Somebody was reading it in the UK and immediately got in touch with his daughter, who lives in Omokoroa, and told her to buy some. It's gone worldwide," he says.
"We're now getting orders from Auckland and Christchurch and all points in between, so we're absolutely delighted," he says.
He estimates they've sold more than 1000 in the past month. "We're getting orders every day still," Dave says. "[It's] potentially saving lives, because that's what it's all about."
The initiative is non-profit, so people are only ever paying cost price, he says. "Because this is a Rotary initiative, every cent of profit that we make goes back into the community.
"We only take the direct costs - even the $3 postage is done at cost. We'd love to have some more orders."
Omokoroa Medical Centre has also come on board as a stockist, with First National on Cameron Rd and Bethlehem, Living Quarters Bethlehem, Paper Plus Bethlehem, Welcome Bay Community Centre and the Bay of Plenty Times office on Cameron Road.
The keyrings are $4 each, or you can purchase three for $10. Dave says they can be ordered online as well.
"When they get onto the website all they have to do is fill their name and address in and say 'I would like so many', then we send them an invoice, they pay and we send them out."