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—09:47, April 23, 2013 (UTC)
I've reverted your edit for two reasons:
1) This wiki is an encyclopaedia of all things Harry Potter; this does not include fanon (there are other wikis for that) and I'm sure it also doesn't include "things similar to Harry Potter in other universes".
2) and perhaps more importantly, all your interwiki links were wrong. The correct syntax for linking to another wiki is w:c:pixar, not w:pixar as you put it (if you try those links, you will see that the second one goes to the (nonexistent) Pixar page on Community Cenral), and the correct way to link to an article on another wiki is likewise w:c:pixar:Toy Story, not w:pixar:Toy Story (which links to a page in the nonexistent Pixar namespace on Central) nor http://pixar.wikia.com/wiki/Toy Story, which works but is needlessly clumsy. Of course, in the above you would also use a pipe to conceal the markup.
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