Clipart library

We would like to add a broad range of clipart to our existing LibreOffice 3.6.4 rollout, most computers are running Windows 7 or 2003. Are there some guidelines to do this?

-The LibreOffice extensions offer a couple that are too small. The following link sends me to a folder but I’m not really sure if what we need is in there, points to the download folder:

Otherwise we can pay for something, either we buy a commercial clipart offering or we could even put a bounty on it to have it tidied up for others?

@athought – Did you find an answer to your question? Did mariosv’s Answer solve your question?

There are some extensions with clipart in: