Stereoklang has released a collection of free downloadable Reason ReFills:

We have been collecting free or demo Reason Refills for over 7 years and of course we are happy to share them with the rest of the world.

All Reason Refills you will find on this site are non-pirated this means that they are free to use in your music production, however we of course encourage you to visit the orginal sites for more information where available.

They’ve already published a couple dozen files, so check them out if you’re a Propellerhead Reason user.