Before rubber lobster bands became common around the mid 1970s, Fishermen used wooden pegs, often whittled by hand, to hold shut the Lobster's Claws.
You could earn 25 cents if you carved enough pegs to fill a tobacco can!
The Lobster Plugs I use were salvaged with permission from an abandoned fishing shack here on Cape Breton's east coast, NS. I found only a small container full, about a mason jar size, and I do not think I will ever find more of them. If you would like a pair, please message me and I will make them at your request!