The latest DIY LEGO-based design buzz centers around this creative-but-simple concept for a childrens' playroom: an interactive plug-and-play which can be built out or used to suspend tiny toys when not in use. While neat, however, this is not the only (or even first) vertical LEGO idea of its kind – more examples to follow below.

But first: "Play is the building block of childhood learning, and this romper room, collaboratively designed by Lena Seow, Vrinda Khanna and Suzan Wines of I-Beam Design, is an architecturally inclined child's wonderland. LEGO boards cover a wall of this room, from floor to ceiling. "Children can build with or against gravity," says Wines, adding that the child's ability to impact the basic architecture of the play area by building on the wall is a large part of the appeal."

With projects like this, "everything a child builds becomes an integral part of the play-space architecture until a new construction is made." A Danish museum, for instance, has done much the same thing using two colors of LEGO brick to let kids sign their name on the wall, keeping the tonal palette basic and creating a writing-on-the-wall, black-and-white-worthy contrast.

Then there is are the larger-than-life LEGO Store (in Downtown Disney) wall bins (filled with regular-sized LEGO pieces sorted by size, color and type), as well as the behind-the-counter vertical surface on which hundreds of little LEGO characters are displayed in columns and rows.

Other wall-hung LEGO concepts include this series of radiators from Scrirocco in Italy – unfortunately, with the difference in scale there is a practical limit to the ways one could actually interact with the idea.