For those asking for a tutorial, after a year, I am not sure the original poster is interested in making one. However Mayu_xp post [# 34 on here and on page 3] and her tutorial in Spanish on her blog is how these pins were made. Simply use Google Translate or another translator and the web site address and poof Mayu_xp post will be in your language and you can also have pins like this. There is also a tutorial on the web for using different products if you google it. One I ran into uses craft clay you bake. I used How to make decorative pins as my search. You can include straight pins or hat pins to expand your search.
Her explanation is clear and easy when I translated it into English. I didnt try French since English is my primary language.
chekccard