LEGO Transparent Light Blue Large Flame with Marbled Transparent Tip (28577 / 85959)

LEGO Transparent Light Blue Large Flame with Marbled Transparent Tip has been used in at least 13 LEGO sets over the past 10 years, since it was first used in 2014. You can also find this part in at least 10 other colors. It has the design IDs 28577, 85959 which can usually be found molded into the bottom of the part.