Here is what our butterfly cookie platter looks like....I love how they look so colourful! :)
For this butterflies, we did it reasonably quickly because its using the wet on wet technique we dont have to wait until the icing dries, we actually did the marbling technique while the icing is still wet.
Here are the cookies fresh out of the oven
While the black icing is still wet, pipe a dot in the middle of the wing with orange flood consistency icing, then grab your scribing tool or a toothpick if you don't have a scribe tool. With a toothpick/scribe tool, pull the orange icing upwards and also pull it downwards to create sort of like an eye shape, then straight away drop another yellow dot (also in flooding consistency) on top of the orange colour while the icing is still wet. Then again drop a small black icing dot on top of the yellow while the icing is still wet.
repeat the same steps for the other side of the wing.
After the icing is dry, pipe the middle body of the butterfly with #5 piping tips and black piping consistency icing. Then while the icing is still wet sprinkle some sanding sugar on top to give it a more sparkly look.