Hello and welcome to planDisney, Alyssa. Thanks for stopping by to share your question with us. I'm so excited to hear that you will be attending
Oogie Boogie Bash - A Disney Halloween Party and I'm thrilled to help you prepare.
A spell has been cast over Disney California Adventure Park and it's Oogie's turn to boogie. According to the
costume guidelines, Guests aged 13 and under are permitted to wear some masks as long as the mask does not cover the entire face and their eyes are visible. Based on the description you've shared, it sounds like what you have in mind for the Rex costume allows the entire face to be visible which should be acceptable. Keep in mind that the Cast Members at security make the final call on what can or cannot be worn into the parks.
You and your family are in for a frighteningly fantastic time. You can enter Disney California Adventure Park as early as 3:00 p.m. on the day of the bash to make the most of your bash time. I also recommend starting with the treat trails towards the back of the park near Pixar Pier (where the trails are a little less busy in the beginning) and working your way to the front of the park. It will also work perfectly with your family's fabulous Toy Story-themed costume. Watch out for Sid and his magnifying glass (and heckles). Be sure to check out the digital guide to all of the bash details in the
Disneyland app.
Alyssa, I hope this is helpful as you are getting ready for a boo-rrific time. Here's wishing you and your family a ghoulishly good time at the Happiest Place on Earth!
Michelle