The four weeks of seasonal events currenty ongoing in Monster Hunter: World are the perfect time to get those limited-time materials for special armor. The Summer Twilight Ticket is among the easier materials to obtain.
Instead of having to best Monster Hunter: World's nasty beasties, the Summer Twilight Ticket is earned as a daily sign-in bonus during the Summer Twilight Festival. Currently, the festival lasts between August 2 and August 8.
Monster Hunter: World Summer Twilight Ticket
The Summer Twilight Ticket can be used to craft three different armor sets: Diver Alpha, Diver Beta and Aloha Palico, the latter being usable only by your furry companion.
Two of Monster Hunter: World's deliveries also require Summer Twilight TIckets. Deep Dive Down rewards the Diver Layered Armor set in exchange for 5 tickets and 5000 Research Points, while Lurking in the Shadows grants the Shadow Shades in exchange for 1 Summer Twilight Ticket, 1000 Research Points and 1 Black Crystal Ticket.