Playgrounds: Missing equipment images

[danieldegroot2]

Missing at least swing, slide, spring rider, zip wire.
There seem to be existing restriction free images on Commons (and Imgur as used until now).

[pietervdvn]

If you link some, good, relevant images, that saves me some work. It would however be even better to have icons, as a picture is often mistaken for a picture of the object itself and not as a broader, abstract category (not to mention that it uses less bandwidth).