Hello Kitty Night Giveaways

Hey y'all! I'm going to my first Astros game next week on Hello Kitty Night. I saw that the free plushies are limited availability for the first 10,000 fans. I don't really know how fast those go, or if people normally line up early to secure one. Is it something I would have to show up really early for, or could I get there like 1hr-30min before the game and most likely still get one?