Unreleased Pins

Triad Wars

Status: Not officially released at a PAX, some distributed online
A small number of these were rewards for a community contest in 2015. Around 60 of these were sold on eBay for charity and the rest were sold as a lot in a liquidation auction.

Radical Rabbit Stew

Status: Not officially released at a PAX, some distributed online
These were given away online in 2020 to a small number of people that participated in a speed run contest for Radical Rabbit Stew. Some were also included in DSBs.

Population One

Status: Not officially released at a PAX
A small number of these were accidentally traded away at PAX West 2019.

Moonrise Part 3

Status: Never manufactured
In 2015, Undead Labs planned a series of 3 pins for the game Moonrise that would fit together. Emberjaw was released at PAX South 2015, Nemony was released at PAX East 2015, and the third one was never made.

Magic Legends Geomancer

Status: Never manufactured
This was initially on the East 2020 pin quest, but it was never actually made, to my knowledge.

Checkpoint Buttons

Status: Never manufactured
In 2020, Checkpoint was planning to make a set of four pins, one to be released at each PAX. Only the A button was officially released at a PAX (South 2020). The B Button was manufactured, but not in time to be sold at PAX East. People were able to preorder the B Button, but it took a long time for them to get to people. The Arrow and Start Buttons were never made.

Other

Status: Never manufactured
Several unreleased pins were revealed by Kiko at the PAX Aus 23 Pinny Pals panel.