Bonac Fireworks on Saturday

The Great Bonac Fireworks Show is set for Saturday night, with a top-drawer display to be shot off by Fireworks by Grucci over Three Mile Harbor just after dark.

The show this year will be dedicated to Rossetti Perchik, a Springs resident who died in May. The founder of the Clamshell Foundation, Mr. Perchik stepped in several years ago to sponsor the annual midsummer fireworks display that had been a tradition for more than 30 years, initially as a fund-raiser for the Boys Harbor camp.

When the camp closed, the future of the popular fireworks show was in doubt, as it was again this year. Fund-raising for the cost of the show in recent years was inadequate, and Mr. Perchik had covered the shortfall from his own pocket.

This year, while an online GoFundMe campaign raised more than $16,000, it was a generous contribution from a community member who wished to remain anonymous that salvaged the show.

The Clamshell Foundation, a nonprofit whose main event — a sandcastle contest on Amagansett’s Atlantic Avenue Beach in August — raises money for the group’s contributions to local food pantries, scholarships to high-school graduates, and other causes, agreed to mount the show this year, but will not continue.

The group has promised to help a new sponsor learn the ropes, and Fireworks by Grucci has agreed to continue its help, by providing a national-class display at a reduced rate, in memory not only of Mr. Perchik but also of the late Tony Duke of Boys Harbor, and the late James Grucci, his friend, who is the father of the company’s current president, Phil Grucci.