Klaus Biesenbach, the MoMa and PS1 curator, headed to the Rockaways on Saturday with a busload of volunteers to help in the recovery effort. He tweeted, “I wish I had a body extension to generate electricity, light and heat.” Stylist Mary Alice Stephenson also headed to the Rockaways with a carload of food, baby supplies, blankets and batteries. On Sunday, top designer Prabal Gurung headed to the SoHo center for God’s Love We Deliver, a nonprofit that delivers meals to those who are seriously ill in the five boroughs. Ben Stiller has also been spotted helping serve food at a Brooklyn shelter while First Girlfriend Sandra Lee served meals on Saturday at the Bowery Mission.