Interesting idea. The tray has sides so that little toys or crayons won't roll off. Attaches to car or can be worn as a backpack.

Pyssel: Djur av äggkartong

Paper Snowman Craft - easy little snowman made of paper strips. It would be fun craft to do with kids for winter!

Monster Mix Up Play Set Quiet Book with clip by CurlyTailCrafts

35 Science Experiments That Are Basically Magic

Gift Bow Tutorial: Hand Stitched Felt Bow - Crafts Unleashed

Gone Camping Craft

Fireworks painting activity - great new year's or other celebrations activity.

Scissor skills / Straight lines / Mr Octopus

Sew up a DIY Travel Pillow to make the whole trip go a lot smoother.