I have two items uploaded to sharecg.
The first is a set of polyhedral dice—there are others but these are as free as you can be and not be in public domain. I also like to think they have good UV mapping and if for some reason you have PageStream there’s a template to ease creation of arbitrary font/numbering. The dice are not what I fully intend (only the d6 has morphs) and I’ve learned enough more about modeling to perhaps get the desired morphs in (oddments like corner clipping on the d4, d8 and d10).
The second item is dynamic hair for Ursus Arctos and so is of more limited use.
Your links take me to the upload screen. Try viewing your gallery and navigating to the product’s page. On the right, there’s a box with the link you can copy.