I was told coffee beans and love that so in one coffee beans!

seashells, wine corks, sparkly glass marbles?

By trying to keep with the colours I can see in your photo loose tea, nuts, cinnamon sticks came to mind. Of course there's beans, popcorn and pasta which was 30 years ago, so I'd avoid those

Very helpful, thank you for posting a pic and also like the wine cork idea :)

assorted color beans?

Hi, Pasta in interesting shapes adds some texture and looks great. Or, if you're adventurous, think about things you like and make you smile.......if you have pets, dog bones in different shapes and colors. If you are a sports lover try golf balls, tennis balls and ping pong balls. Biscotti, fortune cookies, wine corks, dry corn, dry peas. Old Christmas ornaments, acorns, pine cones, and wrapped pieces of candy. You can spray lacquer bread sticks. Pharmacies would fill those with water colored with food coloring and display them in apothecary shops. Have fun.

See this site for additional ideas
https://www.google.ca/search?q=apothecary+jars+filling+ideas&client=firefox-a&hs=9df&rls=org.mozilla:en-US:official&tbm=isch&tbo=u&source=univ&sa=X&ei=zRf3Ueu_JsjVqQG0moD4Aw&ved=0CEEQsAQ&biw=1024&bih=605

A terrarium with alternating sand and dirt as the base.

WOW, who knew I so many options! Love all the fun options and thanks for the direction too with the google images!

Who knew? Great google site. I have all white buttons in mine. They seem to be mostly pearl or shell but really shimmer. Now thinking about doing one in another color. Have fun with your jars

I love the idea of bouncy balls, so playful and original. What about candy? Even if you don't eat it, the color options are endless!

My wife and I have some like these and we switch out the contents seasonally. Around Christmas, its mini ornaments, around Halloween/Thanksgiving, mini pumpkins, Easter, decorative eggs and the balance of the year she has a few different fillers she uses depending on what she is in the mood for.