I went to a medical supply store and bought the 5 - 7 min. setting plaster that is in rolls and is used for casting. I got 6 rolls but only used 4 on the belly cast I posted (the one on the right)... though I can see needing 5-ish rolls.
We set out a towel on the floor, got a warm bowl of water, I LATHERED myself up with massage oil anywhere the plaster was going to go (so that the plaster would not pull my hair out - ouch!), got a set of scissors, my DH cut a bunch of strips to go across my belly, over my shoulder and down, and we did a few for around the belly button, under the bbs and around the nip's (b/c those areas are hard to use a wide flat strip on... it doesn't work). Then just dip the strips or pieces into the water, kind of smooth off the extra water and apply.
It's ok if it's drying as you're adding more on top too. You will want to double layer everything so that it's thick enough to hold up well. You can smooth in the plaster on the strips to get a more even feel, but I'm going to paint mine too eventually, so it's fine to just leave it as is too... whatever you prefer.
Smooth down the edges and walah.
You can use Vaseline (I did last time) to keep the plaster from sticking but I didn't want the petroleum on my skin (absorbing) so I used massage oil this time - much easier to wash off too and I'm sure healthier...
Any questions I can help with or forgot to answer?
Mama to 5 amazing little people, and a surrogate mama to another.
Avid Unassisted Birth supporter/Mama