Let them decorate a piece of wood with paint, glitter, and other art supplies. Then give them ten bolts. Line eight up in a row with a small space between them, and stack the last two bolts at one end or in the middle. This menorah is perfect for preschoolers who will actually light, because most generic Hanukkah candles will fit perfectly into the bolts.
To make a model of a menorah to hang on a classroom bulletin board, you can use toilet paper rolls and a paper towel roll. Just let the kids decorate each of the rolls and then staple them to the bulletin board to form a menorah. Make some red flames from construction paper and add them to the top of each candle. Make sure to display this Hanukah craft for preschool kids prominently around the house, and refer to them often over the course of the holiday. Your preschoolers will be proud of their creations!