This page is for Junk Jack Retro.
If you're looking for the Junk Jack page try the search bar or looking here
This is a O-Treasure found by digging around in O-Winter Biomes.
They come in 3 colors which do NOT stack with each other.
They do stack with the same color, however.
In 1.0.41, it was found in O-Christmas Loot.