Outdoor spike lights are great for adding atmospheric lighting to your garden. Thanks to a stake at the base of the fitting, you can place garden spike lights in lawns and flowerbeds to illuminate your garden or pathway.
...and use them to painstakingly create artistic yet lewd renderings on your front garden.
The missus won't appreciate it, your neighbours won't appreciate it and your in-laws, bless their straight-backed ways, certainly won't appreciate it. None of them will see the creativity involved and they won't share the view that "if stars could arrange as glow-in-the-dark nudes, more people would go camping".
You'll only find yourself in the dog box and filling 100 little holes with soil so the grass can regrow.
But if you happen to have a really really REALLY long pathway, feel free to buy fifty sets with pleasure!