Flanagan, who struggled in her first five jungle trials, had the added pressure of taking on the Bad Day At The Office challenge in front of her fellow camp mates as well as the live cameras.
But the 22-year-old managed to come away with a respectable five stars, despite some disappointed groans from her malnourished companions.
The office-themed challenge first saw the actress type her name, age and occupation in a keyboard that was crawling with green ants.
She completed the task with ease, but then refused to stick her head in a photocopier full of cockroaches to retrieve two stars with her teeth.
Flanagan went on to pull another star from a pot of yabbies before successfully grabbing goodies from a vending machine containing a large python.
Her effort came after she triumphed in Saturday's Deadly Delivery trial, guaranteeing a meal for every one of the famished celebrities.