The creation was built on a black LEGO base to make it look like a trophy, with a white toilet on top.
And comically, the big brother built a yellow stream of urine going straight into the toilet to symbolise his brother being trained.
“So the two-year-old is potty training and this is what the 10-year-old comes up with: ‘It’s a trophy for when he is all trained’,” the parent wrote when sharing the photo on Reddit.
Redditors commenting on the thread thought the idea of having a trophy for a child who has potty trained was genius.
“I remember when I was a kid I was scared of sitting on the toilet and I would cry and say I was going to fall in and never wanted to sit on it without help,” one wrote.
“I think a trophy would have helped if I’m being honest.”
Another wrote: “Incentives to help kids potty train is a great shout and I applaud your 10-year-old’s creativity.”