What is Judaica? The concept of Judaica includes the use of various religious objects found among the Jewish people, such as: Kiddush cups, mezuzahs, candlesticks, lamps, and dreidels. Rituals in Judaism require the use of these special items. Bless the wine using a Kiddush Cup. Enter a Jewish home & pass by a Mezuzah on the threshold. Light the candles for Shabbat or on a menorah for Chanukah. Use objects of beauty like the dreidel & enhance the celebrations!