Hey kids! This weekend Mr. Mickey and his sidekick and fellow PAPER employee Jamie Granoff are joined by a cavalcade of cuties (including Catharine Malandrino, Lynn Yaeger, Charlotte Ronson, Michael Musto and Baby Daddy from Scissor Sisters!)  who've made donations of new and used designer clothing for the Celebrity Sidewalk Sale. There will be bargains galore!  All proceeds go to Citta, an amazing charity that builds schools, women's centers and clinics in India, Nepal and Mexico. (The proceeds from the sale will be used to build a school in Jaisalmer, India.) So come out and indulge your shopaholic tendencies for a good cause. We'll be there Saturday and Sunday from 12 p.m. to 6 p.m. at Screaming Mimi's. 382 Lafayette St. between Great Jones and East 4th Streets.