4 sheets construction paper-colors of your choice
4 clear plastic CD cases-you can find these at the dollar store
Trace a square to fit your CD case then cut it out.
Tape the square to the inside of he case, shut it and your done!! A few ideas you can try:
-While your toddler is playing with them you can keep mentioning what color he is playing with
-You can ask your toddler to point out to you certain colors
-You can stack them and ask your toddler to find a certain color