The unique parts are the insulated blocks that form much of the structure. They are the pieces that resemble Lego bricks.

Thankfully, [John Sokol] has come up with a way to laser cut his own LEGO-compatible bricks ... script to generate just the top pins of the block, [John] exported an SVG into Inkscape so that ...

A 3D-printable 9V battery caddy compatible with Lego® Powered Up!® Hub 88009, so you can make your motorized Lego creations rechargeable instead of throwing away zillions of AAA batteries. This is not ...

The enclosure for the LegoDuino is, of course, compatible with every Lego brick on the planet. It’s made from a 6×16 plate, three blocks high, with enough room for the electronics, three AA ...

The 2,064-piece Lego set is shaped just like the iconic Question Mark blocks from the Super Mario ... the entire set is compatible with the interactive Lego Mario/Luigi/Peach figures that come ...