That's the Dan Jacobs (Atreyu) signature. I really like that red blood effect. I want to put that on my guitar, BUT, no where on the wood. Only on the pickguard. I know since it's plastic, it might have a different procedure.

Any ideas? Materials? Point me in a direction?

Thanks in advance

P.S. I'm new to painting so please try to make it sound like you're talking to a four year old :-)
Im thinking you should spray the top edge till you can see the paint get wet-looking, and let it drip down. The put a few coats of clear paint on it, and you should be okay i think.
take a paint brush and splat the paint on to the pickguard.
or get it really wet and drip it onto the pickguard at an angle