Sometimes we use emojis just because they contain a specific sound we’re looking for. For example, I used the sparkler emoji only because I wanted that “ler” sound at the end of the word. The answer to my puzzle doesn’t contain the sound “spark”, nor does it have anything to do with sparks!
I hope that makes sense. We’ve been playing this game for a while now, so we’ve found ways to create ever more extravagant puzzles from a limited set of emojis.