At the very least you should get back the price of your materials. Most say two or three times the cost of materials, depending on what the economy will take. That will give you an amount for your time. You deserve a fair wage for your work. $20 for a full size afghan is much too little IMHO. You could probably sell a hat and scarf for that.
Doctors often prescribe statins for people with high cholesterol to lower their total cholesterol and reduce their risk of a heart attack or stroke. While statins are highly effective, they have been linked to muscle pain, digestive problems and mental fuzziness in some people and may rarely cause liver damage.
Statins such as Lipitor, Zocor, Pavacol and Mevacor lower your cholesterol by inhibiting HMG-CoA reductase, a key enzyme in cholesterol synthesis. But they can also activate the atrogin-1 gene, which plays a key role in muscle atrophy. One recent study showed that even low concentrations of these drugs led to atrogin-1 induced muscle damage. And the higher the dosage, the greater the damage.