Cork as fishing bobber. I've seen them carved into little fishy also.

Suspending lures in shallow water

Sheep's Head Fishing Blog - House on the Sheep's Head

4Pcs 60Mm 10G Ice Fishing Hard Bait Minnow Tackle Bait Swimbait

CATCHING BIG FISH WITH LOBWORMS AS BAIT

Easy to Make wine cork fishing bobber

In the Loop Fly Fishing Magazine - Issue 39 by In the Loop Fly Fishing Magazine - Issuu

Fishing Reports Archives - Wrightsville Beach Fishing Report with Capt. Jot Owens

Popping Cork Rigs, Fishing with Popping Corks

The Tale of the Fly Rod Handle - The Missoulian Angler Fly Shop

Authentic Cedar Salmon Cork Ornament - wildlgs

Angling Buzz: Spring Panfish Patterns