I got these and stuck them on the side plastic portion in the back, just above the arm rests.
Light It! By Fulcrum, LED Wireless Mini Stick On Touch Light, 3 Pack, Black https://www.amazon.com/dp/B00KY4W0KU/ref=cm_sw_r_cp_api_glt_fabc_93803BJZ7QJ48PQHSP49?_encoding=UTF8&psc=1
My kids like to...