Used a decorative bullet-point, the sparkle has both a ❇︎ text and ❇️ emoji presentation available on most platforms.
Sparkle was approved as part of Unicode 1.1 in 1993 and added to Emoji 1.0 in 2015.
U+2747
U+FE0F
❇️ Sparkle
❇️ Variation selector-16