This is a side hobby/project of mine that I can finally move on after 2 years.
I started working on the earliest version of Gaster's head in 2016 Halloween, and I'm pretty much done after 7 versions of 3 different heads.
Learned a lot in regards to electronics and the physical medium, especially when it comes to adding vfx and details on the old bugger.
Might rebuild the whole thing later, but the current one is still good for a Halloween spook. :D
The head was a template scaled up in Pepakura Designer, while the ID badge was drawn in photoshop.
There are easter eggs to Undertale that was added to the ID as well.