Does anyone have a tutorial or a link to one please? I would greatly appreciate it!

Thanks in advance.

http://cakecentral.com/g/i/1312726/a/1313726/this-was-my-first-tiki-mask-i-treated-it-like-a-tiered-cake-but-all-tiers-were-8-inch-cakes-8-total-i-took-each-two-layer-cake-and-seperated-it-with-an-sps-system-and-just-kept-building-covered-the-entire-thing-with-buttercream-and-wraped-in/

She gives a bit of insight in to how she does it. 

This does help bct806, thank you. I was actually looking to make one out of gumpaste (I guess I should have mentioned that huh?). I will be placing it at the base of a volcano cake like this one:

http://1.bp.blogspot.com/_DvQd7FfQXT4/SH-Cg6vAWiI/AAAAAAAAAqM/hy2m5uBjulE/s320/tikivolcano+copy.jpg