Above: Shelter of Nostalgia designed by Worapong Manupipatpong.
Looking for a job to do this weekend? If you are handy with a bag of tools why not try building a hideaway for your child. Take inspiration from this pine indoor tree house built around a column. Not many people have this kind of support in their home, if you fall into this category try freestyle with pine instead, it will looks just as good.
Alternatively, construct a teepee structure and cover it with foliage to provide shelter. Both will take a bit of effort to construct safely, but your children will make memories that will last a lifetime.