2D Chess Chips

I've been trying to make a cheap, simple chess set for some time and 2D seemed like the best way to go. I remixed a poker chip and embossed chess silhouettes (from https://openclipart.org/search/?query=chess) through it so that the pieces wouldn't just be checkers pieces.
The pieces have a diameter of one inch (25.4mm) (smaller than the poker chip's original size because the chip was too big for the chess board I have) and are about .1575 inches (4mm) tall.
Note: the premade set has an extra queen for promoting pawns.