I can suggest a
Camping Theme.
Its a great idea which can go very well with the
Earth Day Theme and into these Summer months where people set out for some family time.
It can include,
Camping tents
Camping shoes hung up on a branch(wall decor)
A campfire with people surrounding it sitting on wooden logs and sharing spooky stories.
A pot-stove set up over burning wood.
A car parked (at the spot of the camping area) with sleeping bags stored on the rooftop cargo carrier.
A camper sitting on a chair or something and playing guitar
Wallpapers can be a 2-d tree bark that serves as a background to the camping area OR a starry landscape with dense forests in the background.
Canned food and camping bags piled up at a spot.
A companion puppy/dog playing around with the kids in the open.
Trees with vines all over them.
A signboard that points towards camping area.
A mythical spooky monster that lives in the woods
A camper sleeping in a sleep bag being pranked with toothpaste getting applied to his face perhaps xD
I hope this helps and maybe is a great idea which can be used as an update, or even better, a new goal!
(i had posted this in the wrong thread previously :P please forgive me)