While some collect stickers, vinyl records, or trading cards, there are rare and unique collections that don’t get much attention, like shark teeth, pencil sharpeners, or used staples. In discovering 40 of these distinctive collections, each one proves cooler than the next, inspiring the idea that you might be tempted to start a unique collection of your own!

Shark Teeth

Reddit

Collecting shark teeth is like building a jaw-dropping jewelry line for ocean enthusiasts—just make sure the sharks are okay with the dental donation program!

Want to see more unique collections? Continue reading!