In the market for a great bracelet for a great cause? On sunny weekends at the 44th Street beach entrance in Brant Beach, keep an eye out for 11-year-old twins Cameron and Carter and 8-year-old Layla, siblings selling both Rainbow Loom and agate bead bracelets to benefit two important local organizations: Friends of the Southern Ocean County Animal Shelter and the Terrapin Nesting Project.

As their mother, Alexis Collado, explained, the Westfield, N.J., family has resided on Long Beach Island the past 12…