It's a pretty simple project, although distressing furniture can be time consuming. I like distressed furniture for kids though because they tend to be hard on furniture and distressing hides all the extra bumps and bruises.
Step 1: Purchase an Old Desk
Step 2: Paint and Distress the Desk
I painted, distressed, added stain, then finished with poly. The top is a different color than the body of the desk.
Visit my blog post, Drab to Dreamy Lego Desk, for detailed instructions on how to distress a desk, as well as the color combos used.
Step 3: Add Lego Plate
I just used glue to hold the Lego (Duplo in this case) down. Pretty simple.
Here's a video tutorial for this piece: https://youtu.be/P9oZRqPDrkI