Hello Samuele.
A quick research (and a lot of questions to my grandparent) make me do a list of the most important places or things about Milan. I would like that if you have more info related to more places pls, add it to the thread so we can grab ideas to develop the artwork.
afaik, the base of what will be needed are:
* Posters
* web banners
* banners (the big ones)
* T-shirts
* Booklet
* Note posters (good to indicate places, directions or further info)
* Identification (badges I guess)
* Anything else related (badges, stickers, )
Some links:
doing further research, my grandparent told me that this lakes are very important since are from the Lombardía region, also known as the "lakes districts"
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tatica
Maria Gracia Leandro