WHOA! That's a ton of things for Marluxia! Sorry I won't be able to use some of you guys' :p!
Marluxia
Dye his hair black and call him emo
Tell him that his flower petals dont actually hurt anyone; they just pretend to be hurt
~flammingdragon522318~
Ask him if he's ever been a flower girl at a wedding
Burn down his
flowers. When he asks who did it, blame Axel
Drown his flowers and
blame Demyx
~xRockxMetalxBbyx9~
Swap his outfits for
dresses
Set his plants on fire (Can get Axel to help here)
~Demoness Drakon~
Make him wear a flower costume then unleash killer bees on him
~vastler75~
Make fun of him because Sora whooped his butt
~luvablenerd~
Shave off his hair and sell it on ebay
~Zacheria~
I nearly died laughing reading all of these XD! Next is...SaŃ—x!