It's poop! Classic soft serve style poop filler pins, they are TINY (See how small they are compared to their own pin backing!). They'll fit any where in your pin display where there's just a bit of space for them to be dumped ;)

Details:
• Poops are filler pins, they are only .33" or 8.5mm tall. 
• Black colored metal with hard enamel color.
• All pins come with sturdy Red rubber backings