McDonald's restaurants in Sweden will sell Happy Meals bundled with smartphone-operated virtual reality glasses during March. The burger and chicken nugget kiddie meals will include boxes that fold into VR headsets like Google Cardboard. Golden Arch's VR toy is not as complex as Oculus Rift or HTC Vive but it introduces children to the world of virtual reality.

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"Happy Goggles" will be available in Sweden from March 5 to March 12 and cost around $4. Kids just have to cut on the dotted line, make some folds, and then insert a smartphone like Cardboard.

McD is using the promo during the week-long school break Sportlov. It encourages Swedish families to go on ski trips. Its high-tech Happy Meal even includes a VR ski game named Slope Stars.

McDonald's based its VR headset on the idea of folding a Happy Meal box in a brand new way, according to Fortune. Adding a pair of lenses and a mobile phone turns the cardboard container into a VR experience.

Just 14 Swedish restaurants will offer the week-long marketing promo. The company will only sell 3,500 Happy Goggles units, according to Engadget. McDonald's Sweden executive Jeff Jackett told AdWeek he hopes the first trial run will result in Ronald and friends offering the VR Happy Meal globally.  

McDonald's is not the first company to offer cheap video viewing devices. Pizza Hut offered a pizza box movie projector and Mattel launched a VR version of its View-Master toy one year ago.

The home of Big Macs and McNuggets has been trying for decades to create an alternate world. It started with characters including Ronald, Grimace and Hamburglar before the Digital Age. More recent products include house-size Happy Meal boxes and a Big Mac-inspired clothing line.

Last year McDonald's launched clothing that featured its famous Big Mac sandwich. Its product line includes thermal underwear, raincoats, wallpaper, bed sheets, and a dog coat.   

The collection was rolled out in Sweden and celebrates the global restaurant chain's 'I'm Lovin It 24' campaign and includes the big burger on a white background.

A McDonald's spokesperson shared that millions of the double-patty burgers are sold in Sweden every year. That is why only Big Mac products are featured in its online shop.