When kids are engaged into a creative project, it can result in something really stunning. LEGO’s brand Duplo has commissioned little kids, whose creativity doesn’t know any borders, to develop the shop windows for the department store NK in Stockholm to. In the new project, conceived by Jung von Matt, Stockholm, the young designers will use their unconventional style and fresh approach, making something unusual, which is still kept under wraps—the brand is inviting its consumers to try and guess what this will be.

In two months, on August 7 between 18.30 and 20.30 kids aged from two to five will start creating something unique in the shop windows of the departments. People from around the globe are invited to observe the process in real time either in person at the location or via the dedicated website. The first person who will guess what the kids are building will get a prize of 5,000 SEK (around $700) from Duplo.

As of now, the brand and kids are sharing some clues from the promotional video, and some of them seem to confuse rather than clear things up. For instance, the young designers inform that their creation “is green, pink, white, yellow and red—they are round, flat, edgy and a little bit sharp, it smells strawberry in detergent.” Any guesses?