Here I show the refashioned elements of the costumes
(See blogpost for the rest of the costume: http://saga-i-farver.blogspot.dk/2014/11/findus-og-peddersen-fest.html ).
A girl's tunic became the upper body of the cat.
For the Pettson costume, I thrifted a pair of men's trousers, that I shortened (before picture).
And also a white and blue striped men's shirt, which I shortened the sleeves of. I also cut the collar to make it look like Pettson's collar (before picture).
A tank top became a vest (before picture).
Ready to recieve the guests (picture before my son put on his cat's ears and had whiskers painted on).