What kind's of things should i have in my car for my son?

[Mommy!]

he will be foward facing come june he was already 20 pounds at his 9 month check up and in june he will be 1 I dont want to hear that i should keep him rear facing my question is what things can i buy for him to keep in the back to play with i already have a extra mirror to see him because i couldnt