Also known as cup stacking, sport stacking involves all ages and abilities who try to stack and unstack especially-designed cups in the fastest possible time.

After watching a clip on YouTube a year ago, Gisborne Secondary College year 11 student Rachael Bromley was hooked and will compete in the Australian sport stacking championships this month.

The 16-year-old will then represent Australia at the world sport stacking championships in Denver, United States, next April.

"I saw the video on YouTube and really liked it. I found a set of cups down the street and started practising and it went from there," Bromley said. "I practised every day for about two hours to try and improve my times."

Bromley was invited to join the Australian sport stacking team - the Stackaroos - after being spotted competing at an open day in Bendigo.

She hopes to continue with the sport and one day become a teacher to encourage the growth of its profile in Australia.

"I've focused on it for a while now and I have improved my times. It's fun and challenging and it helps with hand-eye co-ordination and using both sides of your brain."

Bromley said she was looking forward to the upcoming competitions.

"I'm determined to break the Australian record in my age group and then I'll go from there. I'm really pumped. I'm nervous, but more excited that my dream is actually coming true."

Bromley does sport stacking demonstrations for her classmates at school and enjoys promoting the sport, which is a growing phenomenon across the globe.

"I like it, I get nervous but at the same time you have to block it out and focus on what you're doing."

Bromley will give a stacking demonstration at Gisborne Secondary College's fund-raising event which includes a car boot sale and helicopter flights from 8.30am-3pm on Saturday. Details: 5428 3691.