if you don't think every member of tourstuck has a flowercrown you're wrong
i'm p sure rose, kk, and kanaya all got together and made a TON occasionally with the help of jade and gamzee who find weird shit everywhere and probably have an inexplicable amount of glitter in their possession at all times. so there's a ton of flower crowns and when dave receives two of them (one from rose and one from karkat) he decides to give the rose one to tavros, the merch kid for the troll band
and tavros gets so overwhelmed by the kind gesture bECAUSE HE WAS HAVING A REALLY BAD DAY,,, and he kind of tears up not that dave sees but that's pretty much how they start hanging out bc they start saying hi to each other a lot. rose decides to make tavros more accessories and knit him things because he is way more appreciative than dave is anyway AND it pisses vriska off to no end (vriska is the singer for the other band and she is convinced they are rival bands)
(they're not actually rivals. pretty much the only people who think they are would be vriska and rose, sometimes karkat, and occasionally john thinks it's funny to join in)