Even though I don't play retro games, I still love the old box and figured that it should be honored in some way. Thus a concrete version would be great since it could live on in my garden as stepping stones. That way it would still provide a path for me to enjoy,
Here's how to make them.
Step 1: Prep the NES - part 1
After you get the top off, you'll see a few plastic posts that stick out. Cut these off with a Dremel. You now have a top half that will lay flat.
Note: some people are shocked to see a NES console cut up. The machine still works and the top can be reattached if you want. But still, they sold over 60 million of these things and barely any are used these days. Relax.
Step 2: Prep the NES - step 2
To find more places that need glue, hold the NES up to the light. See a leak? Glue it! Repeat, repeat, repeat.