Shopping for a new best friend? Fashion designer Adam Lippes is surrounded by models all day long, so he knows cute. Today at his chic boutique, he’s showing off “the cutest four-legged New Yorkers around” – including Blossom, a 7-year-old female Chihuahua mix, and her fellow adoptable dogs from the ASPCA. Meet them from noon to 5 p.m. at 678 Hudson St.; (212) 229-2838.