For all the junior happy campers out there, I thought you might be interested in a range of camping-related stationery, party stuff and other accessories Wilko have been doing for a while (you may have already seen it, but I have only just discovered it). Link here: www.wilko.com/search?q=happy+camper.
They also have a camper-themed range of bedroom stuff for kids which is nice. I picked up a cushion and a storage bag today which I think DD will like for the tent.