Spike dcollars from the soon-to-be released "DZ's Devious Devices Expansion". Includes male and female versions that come in black, red and white. A pink latex version is available for females only.
How to obtain:
The armor can be crafted at a blacksmith Forge or you can use the console command "help collar 0" to locate the ids.
Besthesda - The maker of Skyrim and the Creation Kit
You're free to use this mod your own project. No need to ask me for permission. Have fun!