Plaster Disaster

I am trying to cast molds of my molds, but I am finding out that using plaster to do so was not a good idea. I don't know what my issue is, but plaster is not working out for me. At all.

I will try using my tried and true ghetto fabulous silicone mold technique. Or maybe try that brush on stuff they sell at AC Moore?

Either way, my car is broken so I will need to wait untill I can get one of those two things to start on it.

-Heather the Chalky White Mess