I took a cue from a friend who did the same thing this year when the weather go good. I hauled the old play kitchen out from their room, where it sat ignored and dusty and outgrown... and I hauled it into their tree house.
Since they spend almost every waking moment in that tree house I thought I ought to give them something more to do out there.
It was like reinvention.
I haven't seen them make so much coffee and pie in ages. They've even been doing the dishes. If only they'd do the ones inside.