Hi everyone, I’m a beginner and this is my third time making a piece. This is supposed to be a Christmas present, so I was working on it on a plane last night and spilled Dr. Pepper on it. This is what it looks like after soaking it overnight in cold water, dawn dish soap and a little bit of vinegar.

Any other ideas on how to get the stain out? I’m so upset and disappointed because I was so close to finishing it when I spilled the soda :(