Virgin Boy Eggs(Tong Zi Dan)

Virgin boy eggs or tong zi dan are a traditional delicacy of Dongyang, China made by cooking eggs in urine collected from young boys. Every year in early spring time, the urine of prepubescent school boys preferably under 10 years is collected and boiled with eggs and sold. Dongyang residents believe "the eggs decrease body heat, promote better blood circulation and just generally reinvigorate the body." In 2008, Dongyang recognized the eggs as "local intangible cultural heritage.

 Info from here, photos from here