So uh, dunno how common it is in other places, but in Lithuania for joninės (rasų šventė/midsummer) we do a whole bunch of fun things, from flower crown making to a whole ass pagan ceremony and culminating with lighting a giant bonefire and throwing the flower crowns to the river (for good luck u see).
But by far, my favourite part of the holliday is when it's almost dawn, the fire is almost dead and you get to jump over it (also brings good luck supposedly). It's just super fun after a night of dancing and celebrating















