I’ve used this peel & stick paper on thick foam core. There are some great wood patterns that you can align to make an easy 4’x4’ piece. The marble takes a little more work to align as nicely if you need it to be wider than the roll.

https://www.amazon.com/dp/B01IASDKBE/ref=cm_sw_r_cp_api_i_eijUCbG7QZ37W