I've got 5 & 6 year old kids. They have a a VHS player / tiny CRT monitor with a few dozen tapes, a tiny janky mp3 player with all my ripped post-y2k era albums, and lots of books and art supplies.

VHS tapes are so cheap. Every thrift store has hundreds for like half a buck each. All your friends have a box in their basement they want to get rid of.