It takes many loving, skilled hands to create — and donate — the hundreds of unique, artistic soup bowls that guests take home every year from the Hospitality House Empty Bowl community meal. This year, the nutritious soup-and-bread benefit for local homeless people will be served up March 2 at Peace Lutheran Church in Grass Valley. That means dozens of area potters are already throwing their best effort into what some of them jokingly call “bowling.” Of course, each volunteer potter has a different answer as to why he or she does it: “This is such an amazing community. It’s …