I sampled the playground I take my daughter too: big plastic slides, metal poles, fences, sand grinding underfoot. sounds pretty silly, but you can put together a pretty cool sounding drum part with this stuff. here's a song I did with it:
it's not mapped out GM style as it is a pretty random selection of sounds and I put the kit together for that song. you can always just write the part with a standard drum kit and then move the notes to the sound you like in my Playground Kit. there are a lot more sounds than what you hear in the song.