"Although entrants in the past have worn things like sarongs," she said.
"I've been waiting to do this for a while but I haven't had the courage - I'm no spring chicken.
"There will be all shapes and sizes - it's not about being a supermodel - it's about the art," she said.
Most of her artwork has been completed by Whangarei tattoo artist Renee Lee, who is also heading to the event.
She estimates Ms Lee, who is the only Northland tattooist going to the expo, has spent over 40 hours inking her skin.
"It'd be a lot more if I could afford it." she said.
She got her first tattoo 10 years ago. "Once I got that first one I was addicted," she said.
Her kids love her tattoos. "I wouldn't do it if they didn't," she said.
She's never been to the expo before but is really looking forward to it. "I'm friends with a lot of the people on Facebook and it would be amazing to see them face-to-face, and also to support Renee," she said.