Does anyone have any advice on making an oil derrick? Any help would be great, should I use fondant, gumpaste, chocolate, rct, ect.

here's a thread where the cake is the derrick!

(and if you want to have fun....make it out of chocolate cake and then hide a tube down the middle. tube connects to reservoir of liquid chocolate goo that can be squeezed to make it spurt out the top!)

http://www.cakecentral.com/cake-decorating-ftopict-589975-derrick.html

Thank you for the link!