Add another perpetual trophy to the Hawai'i high school football lore.

When Castle celebrates homecoming by hosting Kailua Friday night, the Windward rivals will play for The Hammer.

Hardware Hawaii, which has stores in Kane'ohe and Kailua, will sponsor a perpetual trophy that will be awarded to the winner after the game. The trophy is made of koa wood and has a hammer held up on base that will have plates for the scores of the games.

Castle coach Nelson Maeda said one of his assistants approached the home improvements store about sponsoring a trophy. The schools are natural rivals being from neighboring communities.

"It's good to play for something symbolic of the rivalry," Maeda said. "It's good not only for football, but for the communities because they have stores in both."

These days, Radford and Leilehua play for the Spirit of Freedom Bowl (because of the schools' ties with the military), which the Mules have held since the bowl's inception in 2003. Waipahu and Campbell play for the Cane Knife (because their communities were surrounded by sugar cane fields).

Kalani and Kaimuki still play for the Calabash Bowl, although the teams haven't played in a while since they are in different classifications.

Some other older perpetual trophies included the Poi Pounder (Saint Louis-McKinley), Paint Brush (Punahou-Roosevelt) and Golden Cleat (Damien-Saint Louis).

The Hammer is one way local businesses are getting involved with schools in their communities. Maeda said Hardware Hawaii has donated supplies, such as paint, to Castle for improvements in the athletic department. Also, Denny's in the Windward City Shopping Center has been providing pregame meals for the Castle football team at a discounted rate this season. But the restaurant is going a step further this week by picking up the full tab, Maeda said. He added that Meadow Gold also has been a frequent donor over the years.

Last Friday's game between Leilehua and Wai-'anae was preceded by a fireworks show by Fireworks Hawaii.

Wai'anae athletic director Glenn Tokunaga said the company donated the fireworks and labor for the show that lasted about 10 minutes and got air time on OC 16, which televised the Seariders' homecoming game at Raymond Torii Field.

Fireworks Hawaii owner Danny Padekan is a Wai'anae alumnus who still lives in the community.

"Sports is always something we're interested in and we wanted to give back to the community," said Mike Miller, who assisted Padekan in the fireworks display.

Miller said the company also benefits from the promotion.

"When everybody thinks pyrotechnics, they think of Ala Moana and the big shows," Miller said. "But we can be hired for smaller shows."