There are plenty of black and white cards available in the internet but I added this in this post as an example of what black and white cards you should get.
According to Babylist, the best toys for newborns are those that are safe and simple yet stimulate their senses and encourage gross motor skills.
Newborns should have toys right when they come home. Although they won’t use it so much the first few days of their life, it’s good to have newborn toys handy.
Here are some great ways you can entertain or play with your newborn: Hold up high contrast (black and white) cards for your baby to look at. Sing to your baby. Take your baby around the home and describe what you are looking at. Make faces, talk to and giggle at your baby. Give your baby a massage.