There are kids with them, but you would be silly to think the latest Woolworths collectable has not become an obsession for usually sane adults.
It started in 2013 with animal cards. Then for a few months this year, with every $20 spent in store Woolworths gave shoppers a Disney domino.
While the dominoes were still available, guides on how to get more of them popped up online.
These guides had suggestions like �Go at the end of the day when the check-out lady is more likely to give out massive handfuls for a big shop� and �Have nice children because they will give you more.�
Now they are no longer available, the only choices obsessed parents have are to buy them online or swap them.
Complete sets of dominoes are selling on Gumtree and eBay from $49.99 to $120.
One set with more than 20 bids went for $117.
Parents are hitting Facebook swap groups to complete their sets.
Rachael Harley, of Coolongup, runs one of these southern suburbs swap pages.
She has a two-year-old, a three-year old and completed her set ages ago.
�I finished my set quickly because my family collected them for me,� she said.
�I love them and swap them to help out other people.�
Ms Harley said Sally and Flo from Cars are becoming the hardest dominoes to find.
She said she�s helped more than 30 people complete their sets.
�It got to the point where people were coming over all the time and I�d be stuck at home all day and couldn�t do anything,� she said.
Meanwhile, Woolworths chief marketing officer Tony Phillips gives purely altruistic reasons for the giveaway.
He said Woolworths was thrilled to bring the classic domino back to Aussie playgrounds in a �world of computers and smartphones�.
�Since we launched the first collectables range in September 2013, we�ve recruited an army of fans that just love collecting,� he said.