A number of carved wooden corkscrews can be found. Anri, a company in Italy have produced wooden carved figural corkscrews from the turn of the 20th century. The Germans, with there carving traditions, have also produced many different types.
I've enjoyed compiling this corkscrew guide, I hope it can be of assistance to you. If you'd like to get in touch it would be great to hear from you. Peter@corkscrewsonline.com