OK I didn't give up but boy it's pretty frustrating. I was trying to follow the tutorials and didn't realise that some of the templates that other people provide are not fully functional:(
Anyway it's taken me about 6 hours to come this far so now I need help
Here's a design for a candlestick/tealight holder. It's pretty crude but kinda shows what I'm after. So the question is how can I give the cones wall thickness? It seems the offset and push/pull functions don't work on curved surfaces. Is there a way to do it and still cut the cone in a vertical plane?