There's a guy named Steve who likes to build with Legos, and he likes mantids too. So he built one out of Legos.
Of course, nowadays, Legos come in a mind-boggling variety of specialized shapes, the better to make bugs with, my dear. When I was a kid, they were all pretty much bricks. They came in different sizes and thicknesses, but they were all block shaped, except for such novelties as wheels and windows.
You can see more views of Steves Legomantis here.