That's a great question to ask here! This is where I come to ask my FTLOA peeps anything I need help with!
The link didn't work but I checked out some of the glass vases on the website you were trying to link to. Not sure which ones you ordered but they all look great!
I love to use vases to store spools of thread, buttons, ribbon scraps, even little embellishments! Now that's the craft side.
For home decor, you could use the bamboo balls or the large river rock stones. They look great with filled with lemons. Also, even just sticks! I love glass vases with sticks too! You can just go in your yard and find some plain sticks, leave them raw like they are or spray them!
Just a few ideas....