Enter Throw Like A Girl, an initiative she came up with and in which she has been joined by fellow Dunedin women Chontelle Syme, Alice Jackson, Freya Haanen and Sarah Freiburger.
Their project, Throw Like A Girl, has made it through to the second round of this year's Audacious Challenge, a business idea and business plan competition for University of Otago and Otago Polytechnic students.
They hoped to teach girls and young women to network with each other positively, to push boundaries and refuse to accept limits imposed on them by society or by themselves, with those values continuing as they reached adulthood, Ms Stillman said.
The women were aiming their message at girls aged between 9 and 11 and planned to deliver it through interactive assemblies in schools.
The plan was to introduce it nationally "and hopefully further than that one day".
They entered the Audacious competition "just for the heck of it" and to kick themselves into action, she said.
Being involved with Audacious had helped them plan their business. Even if they did not win - up to $25,000 is available at the end of the year - then the experience would still be worthwhile.
They had developed their idea much quicker and faster and had "a little bit more oomph" behind them, she said.
Fifth-year physical education and linguistics student Andy Foster was focused on meeting "a valuable need", rather than making money.
His brainchild, Scarfie Textbooks, is an online forum for exchanging, selling and buying university textbooks in Dunedin.
Several years ago, when his flatmates had textbooks to sell at the start of the year, they made and put up posters and one of them said: "There must be an easier way."
That spurred Mr Foster into action and the initiative had "taken off" and was filling a local niche. It was a free service.
There were potential future business models, such as advertising or importing and selling textbooks, or branching out to supply other things students needed, such as lab coats.
He thought Audacious was a good way to get more business development and marketing advice to build the enterprise.
"Audacious is kind of kicking people into action about that thing they have been thinking about," he said.
Third-year law student Ryan Everton, who developed the Globelet, a reusable drinking cup, is on a mission to reduce waste around New Zealand.
Having entered Audacious "just to get a little bit of knowledge and extra help", he had found the development of his business "pretty interesting".
Kari Schmidt, one of the Audacious project organisers, said there was a huge variety of ideas and those involved were passionate.
"That's the exciting thing about start-up. You can take what you care about and put it into exactly what you are doing," Ms Schmidt said.
