Is this the project that you are looking for- https://www.hometalk.com/11296996/diy-faux-hand-carved-wood-bowl?
Hi Liz, here is a link with several finishes you can "faux" using smooth foam, including the wood look bowl, good luck :)
Liz, I was going to suggest the same tutorial as the one above. Follow her advice about the wax to only darken the "carved" looking places for the best effects. It really does look real!
Paint it tan brown streaks then some darker brown to look like wood grain