Seven-year-old Sienna Leaver of Huntington Station loves to create art — so her mom, Heather, thought that designing a decorative bra to auction off and raise money to help people who have breast cancer would be a great mother/daughter project.

This is the second year that the duo is making a bra for the Creative Cups auction at Adelphi University in Garden City. Anybody can make a bra for the auction, says Lyn Dobrin, spokeswoman for the Adelphi NY Statewide Breast Cancer Hotline and Support Program. Last year, 200 bras were auctioned off and raised $75,000, Dobrin says. To contribute a bra, register by June 17 at creativecups.adelphi.edu. There’s a $25 registration fee to make a bra.

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July 15 is the deadline to submit the completed bra, which will be photographed and added to an auction book for the March 16, 2017, auction, Dobrin says.

Last year, Heather and Sienna chose a theme of butterflies for their submission. Somebody paid $200 for it, Sienna says proudly.

This year they’ll use the theme of a little girl playing with dandelions. “She actually drew designs we carried to all the fabric stores,” the elder Leaver says.

“We’re going to use blue sparkly fabric and a velvety green color and put jewels on it,” Sienna says. “I would like to help charity and stop breast cancer by doing the project. ”