This is the Curmudgeon's own design. He was frustrated by not having a handy and portable tool that could safely dislodge barrel obstructions. So, he designed it himself.
Machined from solid brass with a gentle radius on each end (no rough edges), the Wad Popper is the safe way to dislodge obstructions from 10ga - 28ga shotgun barrels. The tool separates from the holder and is dropped through a shotgun barrel to safely dislodge an obstruction. Compact size is the key - it fits in a pocket or hooks to your range bag. If you need to clear a barrel, you'll be very glad you have it.
WARNING: Never ever try to remove an obstruction from your barrel by shooting through the obstruction.