Focusing on the meaning of the word:
* Fragile pieces
* Remains of something lost
* An incomplete thought
* Glimmering memories
* Missing parts
* Echoes of the past
* Not whole, yet significant
* Trace of what was
More playful and creative:
* Flying through the air
* Rainbow of colors
* Alluring and strange
* Glowing like a gem
* Mysterious and unknown
* Exotic and unusual
* Never to be forgotten
* Throwing off sparks
You can also create your own acrostics by using words that relate to specific types of fragments, like "glass fragment", "poetry fragment", or "memory fragment".