I couldn't even get additional coins for the first Peg-E event. They never came across the theme bar at the top, and the only prizes available for me to win were various levels of cards with the highest being a swap pack. I have NEVER SEEN dice skins available to win, and I had over 150 coins when I started.
My very favorite Monopoly Go Sheild would be the gold and silver diagonal striped Shield with the silver Scarab on it. I found it in my very first digging event along with my Egyptian black cat. So cool!