The Holographic Sign is a kind of sign in which looks futuristic and is shown like a text in Hologram form.
In-Game Description
"Program messages into it to tell your friends! Use your Wrench on it to change the message."
This item can't be spliced.
This item never drops any seeds.
This item has special properties you can adjust with the Wrench.
You can get this item by successfully completing surgeries.