Bubbles or jewels and hearts stained glass pattern.  I made this stained glass pattern with concentric hearts and jewels sort of to remind me that my middle child gave me a hand made heart pin (ceramics class at school) which had a bubbly effect on it, and this little pin has been in my place of most prized treasures for abouty 25 years (LOL).  You can cut the bubbles out of glass or use varying sizes of glass jewels available in hobby stores and arrange them as they fit for you.  Multicolor bubbles would be great too.