A tray table is not a playroom
Use one activity at a time and keep a no-material backup. Follow crew instructions about restraints, tray tables and loose items. Check current security and airline rules for the supplies you plan to bring.
Before starting, check the materials and adult-help notes in the guide. Begin with a small version and keep a familiar alternative available. If the idea does not fit the day, simplify the task or choose a different pace; a longer list is not always the answer.
A useful next step
Choose one guide above and save two ideas you can actually use. The free starter pack gives you a paper backup for moments when you would rather stop searching and begin.