Draw a rainbow on a sheet of poster size card stock. Place assorted small objects -- buttons, fabric scraps and craft feathers -- into boxes. Fill one box for each color of the rainbow. To play, ask children to select items from the boxes and place each one on the rainbow to correspond with its matching color. Increase the difficulty of the game by placing all of the colored objects in one box so children must sort the objects before placing them on the rainbow.
Make an oversize die for children to roll in a color game, as suggested by the PreKinder website. The website has a downloadable template to make color dice that contains 10 colors. Print the template, or cut colored circles from construction paper. Glue a circle to each side of a 4 to 5-inch square box. To play, children take turns tossing a die, identifying the top color and finding an object in the room that matches it.
Paint 12 small stones different colors to bury in sand for a color matching game. Purchase a bag of decorative river rocks at a dollar store. Roughen each stone's smooth surface with sandpaper before painting, to help the paint stick. Remove the top from an empty cardboard egg carton. Paint each egg cup to match a colored stone. When the stones and egg carton are dry, fill a plastic box with play sand and bury the colored stones. Children search through the sand for stones. When a stone is found, children place it in the matching egg cup.
Divide children into equal teams for a color race. Tell the first child in each line that when you say "Go," he must race around the room to find an object in a secret color, then bring it back to his team. Whisper the name of the secret color in the ear of the line leader on each team. Continue until each team member has a turn racing to find the secret colored item. Choose primary and secondary colors for younger preschoolers. Challenge older children to race to find things in hues like peach and violet. Add more difficulty to the game by naming two secret colors for children to find on a single object.