(Not that we expect Konami to actually make them in the near future, but sure...)
Any effect damage that a "Trickstar" monster inflicts to your opponent by a card effect is doubled. Once per turn, if a "Trickstar" monster you controls inflicts damage to your opponent by battle or card effect: You can target 1 card they control; destroy it. You can only control 1 "Trickstar Fireworks".
This is kinda still yielding a bit on their original burn theme, but it does give them a bit of removal too if needed. Flower basis is unknown at the moment, but guess tie it into the fact that "hanabi" (Japanese word for fireworks) is literally "flower fire" in kanji. Take it as you will.