All you need are fine tip colouring pens or pencils & wide lolly sticks.
Optional: gold/silver pens to add details.
Alongside your craft materials, you could have a few pictures of royal guards available to inspire the children's creations.
These guards are great for guarding the pages of any book, but also make fabulous play props to play with at your event.
Looking for more Coronation crafts & activities?
You might like these: Eco Friendly Coronation Crafts