I have used spheres all over my home, including moss and other natural types.  I was looking for something that I could add to a large pedestal pot that is a table centerpiece.  However, I liked the design of every one that I did not want any obscured in a heap.  I now have them in an oblong shaped rustic low bowl on a ottoman.  They can be broken into two smaller displays and would work well with other items with less character.