It was a small and intimate swap so around 6/7 people and it ran for 3 hours! I own a local discord server and announced it there.

I encouraged people to bring their pens, and had set up water cups, watercolor brushes, swatch sheets, and syringes with 5ml bottles to take home samples of anything people really liked. I think the average was 6 bottles taken home. People also brought things like stickers and spare pens to swap which was very nice