One of the most popular wedding flowers in recent years is the Cala Lily, a versatile flower which makes great flower arrangements at any time of year, so what could be more appropriate for an anniversary table-center than a bunch of calla lillies?We can't all afford to eat out, even on an occasion like a wedding anniversary; if you plan to stay in, but still make an occasion of it, you'll want to create a pretty candle centrepiece to help set a romantic mood.You will need eight or ten silk cala...