Some examples are smooth muscle and cardiac muscle.
a screwdriver opening a the lid of a paint can
A cash register often contains a credit card slider. ATM machines also are card machines. Playing card machines exist to tell "real" from "fake" cards.
Technically, no animal is a simple machine. Simple machines are the basic elements which comprise all other machines. Though some people compare animals to machines and comparisons between anatomy and simple machines might be possible, they are far from obvious.
The television show 'Extreme Machines' is about the largest and most impressive man-made machines on the planet. Some examples of machines that are featured in this show include Tanks, Oil Rigs and Flight Carriers.
Many examples of compound machines exist that can be found at school. Some examples include scissors, staplers, and a pencil sharpener, among many others.
pulleys are one
Well, an example of involuntary is your esophagus or intestines. We were taught that digestion is an involuntary process, so I am sorry but I do not know of any voluntary muscle examples.
All muscles are red because they all have blood in them.
A wheelbarrow and a pair of scissors are examples of complex machines.
water bottle, clock winders, jars, any bottle caps....
Textile Machines, Railroads, and Steel