Damon-Apple- the forbidden fruit (Elena) ,the apple of discord (Elena).Also in Norse* mythology, apples are a symbol of eternal youth (the eternal stud).
Elena/Katherine- Pomegranate- To the Romans, the pomegranate signified marriage;the food of the underworld
Klaus- Pear- The ancient Chinese believed that the pear was a symbol of immortality
Stefan- Peach (?) The peach tree is a tremendous Chinese symbol for longevity and immortality