craftgrrl | Duct Tape Body Form Expieriences

I have been thinking about making one of those duct tape body forms for help with my sewing, and I was wondering about some experiences with them. So if you have made one, was it easy to make? How well did it hold up? And has it helped you in your sewing?

I want to start making some bras/undies and lingerie, so I need something with my exact measurements and curves that can handle some stretchy tight fabrics on it. I'm a 36DDD with a 26" waist and its impossible to find cute lingerie to fit so I'm gonna try making some.

I'm thinking of filling out the form with some of that spray foam stuff from a hardware store so it would be a bit more stiff. Or I'm open to other recomendations too.

Thanks in advance. I'd love to hear your stories about making a duct tape form.