As a side journey from my iPad Pixelator project, I discovered that the combination of "Don't Break the Ice" blocks and Christmas lights were a perfect match.
All you'll need is a set of blocks from the game "Don't Break the Ice", a tube of clear cement, and a string of lights. You'll discover that the game typically comes with 34 blocks. This project requires as many blocks as you have lights on your string.
Now here's how to get it done. I began with a 35 bulb string of size C-6 lights.
The bulb is just the right length to fit diagonally into one of the cubes.
Put a small 1/4" glob of airplane cement into the indicated corner.
Press and hold the bulb into the glue across the diagonal of the cube for sixty seconds.
Repeat on each bulb until complete.
Decorate like it's The Future!