I recently rediscovered this piece of terrain whilst going through my collection - inspired by the ghost town of Minefield in Fallout 3, I decided to create a post-apocalyptic playground with a bit of a bleak twist - landmines!
The equipment was all built from cheap materials I found in my box o' terrain junk - the fence is made from wooden coffee stirrers collected from Costa and Starbucks, the see-saw is built from offcuts of plasticard, the swings frame is bamboo kebab skewers and the roundabout is the lid from a pot of waxworms (purchased to feed my pet turtles). Paperclips and cheap chain added the details...
Finally, I added sand, clean kitty litter and the final finishing touch - land mines! They were made using some spare 1:48 tank wheels with circles of plasticard added to the top.
The piece was originally built for my Wasteland setting, but should work well in Necromunda-style shenanigans, 40k or zomb-apoc.