Im sorry if this isnt what you wanted, i couldn't think of anything else that wasnt an exact replica of what I gave Ecole. It's just a plant that lures beings in with the delicious taste of soda, and if the trap works correctly, then it'll just start eating the poisoned body of whatever drank it. I used Sprite as a refrence for this plant. It still has the proporties of real soda though - too much of it will indeed harm you, and in this case, cause death, and not too much won't be harmful in the slightest.