swap any egg for a different type (except normal)

if you want to trade, for example, 10 blue eggs for 1 chilly egg, you have to trade your blue for green, green for yellow, then use the 10 yellow egg for 1 spiky egg trade, and swap your spiky for a chilly. I don't want to set up each individual trade sorry, it's a lot of work.

private trades welcome instead also! to make it less confusing