Charm Jars. Very cute.

These are very easy to make using common household items.
*Broken jewelery,
*baby food (and other small) jars.
 A small toy can be reinvented.
 From Fairies to under the sea to gothic scene and everything in between.

Click on the picture above for a simple video to get you started.

These cute jars are available @$6.21 for 20 (aprox 30 cents AUD each) here.
http://www.cutoutandkeep.net/projects/jar-of-pearls-cell-phone-charm

I love this snow globe bottle charm over at: (The fish in a jar is cute too.)

http://www.brandywinejewelrysupply.com/blog/4-fun-diy-bottle-charms/

"Doctor Who Tardis in a bottle", this could work with star trek, footy teams, graduation "certificate" oh the ideas...
 http://www.doodlecraft.blogspot.com.au/2013/11/doctor-who-tardis-in-bottle-necklace.html