Custom-designed wine bottles are developing a strong presence in the Japanese market because of the country's tradition of giving presents.Bottles celebrating birthdays, anniversaries, meetings, company foundings and partings have all sprung up in the last year and bottlers say the demand is growing.Glass makers say that while custom-designed bottles are not popular in Europe they are becoming a lucrative fad in Japan.Internet-based sales are also gaining pace with bottles being designed for individual clients while shops selling alcohol are stocking special occasion bottles in the same way that greetings cards are sold.In Japanese these products are called "wine in etched glass bottles" although the designs are, in reality, sandblasted onto the glass.Particular favourites include decorated bottles of red wine for a 60th birthday, or kanreki, replacing the traditional red, sleeveless coat and weddings with the name of the bride and groom etched onto the glass.