Hi,
Your project sounds very interesting and I'd really love to work on it.
I live in Serbia, in town near Novi Sad. Are you familliar with Exit festival? For last 15 years, Novi Sad has hosted this festival, and lots of young people from Europe and North America visit this city. I hope this will be interesting place for posting your stickers (July 9th-12th). Please check following link if you haven't heard about Exit festival.
As for my experience, you can see for yourself that I've worked here mainly as a content and article writer; but, I've also done some VA work, which included blog posting, forum posting, data processing and entry, etc.
You're welcome to check my reviews and should you have any questions, I'll be happy to answer.
Kindest regards.
Milan