It's my first woodwork project and I went ahead on building a slide with a playhouse underneath. Took some of the ideas from Ana's playhouse deck plan. It took me awhile to figure out how to build the slides and steps though. The project is intended to cater for my 1 year old daughter. As you can see, the playhouse is not "there" yet as there's no wall surrounding the structure beneath the slides (there will be some soon enough). As this playhouse will someday be put under direct sunlight and heavy rain, choice of wood takes into account the tropical weather that we have here in Malaysia (I might have to put some heavy coating on that Meranti though).
Dimension wise it's a 4'X4'X4' structure with 1.5' steps attached at the side. The railing are about 1.5' high.