So I swatched all the colors I thought might be close to MAC Silly Goose. To me, the closest color is Detrivore’s Slimy. I swatched on Aromaleigh Light Primer and took pictures outside in natural (overcast) light and indoors with flash.
Silly Goose is on the lid here.
Slimy is on the lid here.
To me, when I’m looking at the colors on the back of my hand, Slimy looks the closest, possibly not as yellow, but the closest in texture and color. Silk Naturals Lime is not quite as deep. Fyrinnae Nonsense! Is more green. The rest of the shades are lighter and more shimmery. They’re all gorgeous though.