It's like your mother always said, just because it's slimy, doesn't mean it's not desirable. Even if she didn't say it, this stuff is certainly gloopy, and eminently usable. Where ooze is needed, jellisacs are your friend.
The following Glitch assets are licensed under an Attribution-NonCommercial-ShareAlike 3.0 Unported Creative Commons license. That means you can use them in your own non-commercial projects, as long as they are properly attributed. See our Licensing page for full details.