Verified answer

Shape it with foam and then fiberglass over it. Don't use the cheap chopped strand mat. Use the fiberglass cloth. Otherwise you will have a lot of sanding and filling to do. You can get cloths in weights from 18 oz to 2 oz. The 18 oz stuff is used for repairing big stuff and making moulds quickly. I use 8 oz as a general purpose cloth. Maybe 2- 3 layers.

If you don't want to keep the foam in the piece, you will need aluminum or wax paper between the foam and your FG. I like to use aluminum duct tape. Or you can just use the pink foam and when you are all done, just pour some gas or something in your piece to disolve the foam.

If you use the pink foam, you will need to use epoxy resin to prevent the resin from melting the foam. If you are going to use the cheap polyester resin, then you need to use special foam -- or the green florists foam to prevent it from melting

The best way is to get creative. And use the right tools for the job, like a measuring tape instead of a pen.

Everything you do is directly related to the amount of dedicated time you submit to the project.......................