Hello, I loaded up the Dalek Mod with a 1.11 texture pack and saw this:

And I thought

woah that's pretty neat

So I think maybe you could add a block that represented these texture errors.

This is block is purely cosmetic and can be useful for mapmakers that want to simulate a corrupt world or something.

I don't know why I thought this was a good idea but I'd like to try building a TARDIS Interior with a 'missingno' theme. plus i think its was pretty neato burrito

It may not be used much, but hey, convenience!

The block can already be obtained via commands or a mod such as NEI, just not the normal creative menue, I'm pretty sure it's named "Hahahyoudon'tknowwhatthisis" or something like that

When you place that it disappears. It's just missing an item texture.

 It's the original image loader block, renaming it to the image names would place the respective images.
Item texture and name have been fixed for U46.