Usually, the ideas are more sexualized or cracky - basically more adult themes.
The best example that comes to mind actually goes the way of horror.
Most people who have heard of My Neighbour Totoro have seen this bus stop!image.
After looking at that image, take a deep breath and check out this re-imagining (WARNING: extremely disturbing). Also look close at what the girl is holding in her hand.
It's an incredibly freaky take on a popular family anime!movie. But it's also brilliant in its own way.
Must now look at Disney heroes in their underwear XD