There is a little trick for people who don't want to search for individual items in the market place search bar. By simply search <insert event> followed by <year> it will show all the items from that collection on the market. idk if this is common knowledge & im just behind but sharing it here anyway as the market doesn't have a much needed more advanced filter option in searching. This is the only way to search for collections I know so far. e.g. search 'Summer 2010'
