Woo Hoo, with everyone's advice and pictures, I did it, I make the Fire truck cake and I was pretty impressed, learned alot of stuff, but still impressed. I also made a little fire hydrant where I hooked up a hose to it and had a hose on the other side that looked like the water was pouring out from. I wished the buttercream looked smoother, but I guess that comes with experience. My nephew saw every detail, from the tiny windshield wipers to the little door handles and brake lights. The water that looked like it was leaking from the connection.
Thanks to all of you for being so kind and taking the time to gave me instructions, and wonderful tips !!
Wish I had a picture to show you, maybe soon.