(http://dedicatedtodlp.com/wp-content/uploads/2016/05/Disneyland-Paris-Pins-June-2016.jpg)
Found the June pins poster at dedicatedtodlp.com. The Pin Event of the month is at Saturday from 11 am to 15 pm in Hotel New York. I found out at passiondlp.com that tickets cost 45 euro (including brunch). As a pin trading newbie I think I'll skip this months event as I don't know what to expect from it and 45 euro seems a steep ticket price. So I'll wait for the Pin Trading Night or Day of July or August instead.