To celebrate the opening of its new bridal boutique, J. Crew held a reception Tuesday night , though it was of slightly-smaller-than-wedding proportions. Darcy Miller of Martha Stewart Weddings hosted the soiree, and even brought her parents along, while guests including Kate and Andy Spade and Amanda and Chris Brooks toted along their young children. Ina Garten, Aerin Lauder, Marcy Blum and Jill Swid also checked out the nuptial-ready wares at the Madison Avenue shop. After nibbling on canapés and sipping adult and kid friendly beverages, guests headed home via custom rickshaws detailed with “Love is in the Air.” Which probably gave a few betrothed couples an idea for a getaway car, but the rickshaws aren’t available through the retailer. Yet.