GCtrackables is an idea that we have had for a long time, built from conversations with people in the community like Chris Mackey, Mark Clemons, and so many more. 
Imagine Project GC, but for trackables. Including popular features from tag companies, concepts from the Geocoin Wiki, a platform for collectors to store their collections on, and a place where users, shops, and vendors all have an equal platform to list trackbles they have (activated or not) as available.