Mark and Rhea, who prefer to keep their last names private, are expected to earn $1.5 million dollars from ad revenue in 2015 alone.
The couple's family-oriented videos star their five-year-old son Hulyan, their three-year-old daughter Maya and their five-month-old son Marxlen.
Their YouTube channel Hulyan Maya receives more than 3 million views daily.

Two savvy parents have made more than $1 million in ad revenue from their family-friendly YouTube videos, which feature footage of their children playing with toys such as Thomas the Tank Engine.

Mark and Rhea, who prefer not to share their last name, upload videos starring their five-year-old son Hulyan, their three-year-old daughter Maya and their five-month-old son Marxlen to their popular YouTube channel Hulyan Maya, which currently receives more than 3 million views daily.

'In 2014, our YouTube income skyrocketed dramatically,' Mark told Yahoo Parents. 'We've made more than a million [dollars] between 2010 to 2014.'

The father-of-three noted that they started their channel in 2007, but said that most of the old videos that they posted 'were junk'. They didn't begin sharing their money-making toy videos until three years later.

The couple's most popular video was made in 2013 and features Hulyan buying a Thomas & Friends Emergency Searchlight set; the eight-minute clip has thus far earned more than 15.5 million views... Here' the video! Click http://www.wetinhappen.com.ng/these-parents-earn-over-1-million-annually-from-youtube-videos-of-their-children-playing-with-toys/