Need a new project? Something relaxing to do after a tough day at work? Check out these amazing and complex LEGO sets designed for adult builders.

A Lego orchid, heart-shaped Dutch oven and Kendra Scott jewelry — all of these heartfelt ideas are set to arrive by Friday.

Now, I’m used to looking at cars and thinking, How much of a nightmare would this be to repair? But this? This was a whole ...