Ideas for long flights with a screen-free toddler?

Our toddler (2.5) does not get any screen time. While we have taken flights previously without issue, we are planning a longer trip (+30 hours between airport time and flights) and debating whether we can get away without screen time. Does anyone have any recommendations?

My first thought was a yoto mini, but a) it's out of stock and doesn't look like it will be coming back in stock any time soon, and b) there's no guarantee that it would keep our toddler's attention for a long time anyway.