This 3D printed version of the PnP board for Adam P. McIver's Coin Age game (http://boardgamegeek.com/boardgame/146130/coin-age). This board has distinct 3D features for each zone and recessions for coins or 3D printed coin tokens (http://www.3dhacker.com/category/555/Toys-and-Games/listings/604/3D-Printed-Coin-Replacements.html). The card size version takes up only slightly more space than the credit card size of the original board, if slightly thicker, but would still fit in a dress pants pocket.
For greatest effect change filament colors at regular intervals. Change the deluxe board every 6mm, change the card board every 2mm. Start with light green or yellow for the Plains of Kashe, then gray for the Silver City, then dark green for the Forrests of Coindor, then tan or brown for the Coper Peaks and finally white for the peaks of the mountians.
Be sure to download and print out the rules for Coin Age to play with at bitly.com/CoinAgePNP