It's not finished.

The uppermost layer of the skin, stratum corneum also called the horny layer is composed of keratin-filled cells covered by a lipid matrix which shields the skin from physical and chemical entrants. The lipid lamellar structure comprises of ceramides, cholesterol, fatty acids and proteins.

Well health potions are generally red which stems from the color of blood. There's a whole history of that in medicine pictures denoting it's, the medicine's, contribution to health. Mana, is derived from the ether which is just a fancy name for the clear sky; the upper regions of air beyond the clouds. When it's day time and you look up what color is the sky? Blue. So even though I did make this up on the spot it's a good enough answer that I'd buy it.

I don't know of any place that will sell just one shell. A box? Yes. One? No. I get the point of the joke but it's like going to the grocery store and buying one, uncooked, hotdog. It just doesn't happen.

Then it worked. That was the entire point of Merrie Melodies series of cartoons.

Spoiler Alert

You know what the best thing about these was? That little gap at the end was for a screw driver. A simple flat head and it was no struggle at all, at all, getting these things off. That being said I could probably count on one hand how many times in my 40 years of life that I've used a screw driver to remove or tighten one of these.