If students don't ride a bus to school, they might when they enter kindergarten, and even if they've never been on one, they probably know what it is. Let them make a bus in class. All it takes is construction paper, scissors and glue. Give each child yellow, blue and black pieces of construction paper. The yellow will be the body of the bus. Have them cut squares out of the blue paper and circles from the black. Glue the blue squares along the top of the paper for windows, and glue the black on the bottom for the tires. You can then let the children draw people inside the windows. When they are done, hang them around your room for everyone to see.
This is another object that most students will recognize. Go over what the three colors (red, yellow and green) mean at a traffic light. Then, let them create their own. Give them a soda can covered in black construction paper (it's better for you to cover the cans prior to giving them to your students because it can get messy letting them cover the cans) and a piece of yarn tied through the tab on the top of the can. Give them each a pair of scissors and a piece of red, yellow and green paper. Tell them to use the bottom of the can to trace two circles on each of the pieces of paper and then let them cut the circles out. With a marker, show your students how to write "Stop" on the red circles, "Slow" on the yellow and "Go" on the green. Paste the circles on either side of the can and hang from the ceiling of the room.
This can be fun, but make sure the kids don't eat all the candy before they assemble their train. This will also require some quick-drying glue, because many preschoolers will not have the patience to hold the candy in place until it dries. Give the students a roll of hard candy (like Life Savers), four peppermints in wrappers, a square candy (such as a Starburst or Now and Later) and a Hershey Kiss. Show them step by step as you glue each of the "wheels" onto the roll of hard candy, represented by the peppermints. Then, laying that flat on the table, glue the square at one end of the hard candy and the Hershey Kiss on top of that. Let the students play with the trains and bring them home at the end of the day.