Last year the two most scandalous dresses had pictures of people on them: http://www.iltasanomat.fi/linnanjuhlat/linnan-allistyttavimmat-puvut/art-1288354280050.html
. One woman had a photo of her daughter, she also broke etiquette by giving the president a message from the daughter (apparently the daughter wanted to attend too). The other had a picture of the woman's father, who wasn't asked about it and got angry at his daughter. Also she had given him a medal he hadn't earned (it's customary to wear whatever medals you have, even non-military people can have them for things like long career as a civil servant, my mother and stepmother both have those and there are strict rules about how you're supposed to wear them, of course).
One special thing about the dress code is that folk dress is accepted and even encouraged, which leads to outfits like this
(based on an ancient dress), this
(Sami, the only indigenous people in Europe) and [img=http://eva02.statkal.fi/plus/img/mega/20101206/mega_101206linnanjuhlat_9997563.jpg]http://this[/img] (traditional dress of Romany here) being very appropriate.