Previously, Mr Rental was charging them $34 a week to use the TV and Xbox.
When police discovered the lie, O'Connor said: "I just wanted to keep the items and not have to pay for them," Mr Morrison said.
O'Connor's defence lawyer Richard Leith said his client had one previous conviction for an unrelated matter in 2000.
"In her words, sir, it's stupid offending, clearly motivated by a lack of funds to be able to pay things off.
"She's currently got health issues which prevent her from working."
There was discussion over whether O'Connor could do community work due to her health, but probation officers determined she could be placed into agency work.
Judge David Cameron sentenced her to 75 hours of community work and ordered she pay reparation of $457 to Mr Rental.
He sentenced Watson to 175 hours of community work and ordered he also pay reparation of $457.