Phoenix: nice pictures!
Tell your Finnish friends to readjust their berets. The berets should have the form of your head. The best way (and most Finnish

) way to do it is to wet them and go to the sauna while trying to form them on your head (does it make sense?) Warm water works too, but the sauna is definitely the best way to go! You can do it as many times as you want, it wont ruin the beret. The hardest part is the drying: try to find something round to put it on so that it keeps the form while drying.
Here's an old picture of me so that you can see what I mean.

The beret is not perfect on that picture, but I hope you get the idea?