Your search for "swamp 1941" revealed the following:
Beast (004) // Insect (005) Token (Foil) (TTRC) from Star Trek Commander, available at 401 Games Canada. Rarity: Token Finish: Foil Artist: Arthur Yuan & Kevin Glint
Swamp (1941) - SpongeBob SquarePants: Lands Under the Sea (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Jon Vermilyea Card Text: Zippy Zombies
Swamp (1941) - SpongeBob SquarePants: Lands Under the Sea (Rainbow Foil) (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Jon Vermilyea