Yoko Ono's WATER SOURCE (2012) combines PARTS OF A LIGHT HOUSE (1966) and a participatory work TIME TO TELL YOUR LOVE (2012) which includes an element "prove your love". For those who participate they will receive a gift from the artist and the photograph taken will be placed on the wall. For the work My Mommy Is Beautiful (2004), you are also invited to bring an image of your mother and write thoughts or remembrances about her to add to the canvas.