A maze solving gerbil to stop us getting lost in the maze.

A mysterious gizmo ( made of shiny silver ) to change size when investigating insects.

An invisibility hat which is a magical size to protect the wearer from lightning and thunderstorms.

A communicator to communicate where you are.

You need a magpie to find unknown treasure. You need food water and some snacks to keep you going.

You need to be intelligent to join. You also need a compass to navigate where you are.

Also an invisibility cloak to be not seen by fierce animals. A pet snake to talk to along the way.
A dragon that likes cuddles if you are sad.kittens to play with. Pixie and goblin traps to trap  unwanted enemies.

A flying eagle to use to fly with. And a flashlight to look in the dark.