This got promptly deleted when I proposed it on /r/worldbuilding, but let’s see how it fairs here. I’ll start with one. Feel free to add others. Fill in the blanks in a way that makes sense in your setting.
[plural noun]? [plural noun]? [plural noun]? It’s yours, my friend, as long as you have enough [name of currency]!
Replacement pineal glands? Artificial thyroid s? Replacement genitals? They’re yours,.my friend, as long as you have Standard Units enough…
What prompts the market for replacement pineal glands?
Also it helps with the production of serotonin.
I know what it does, but “replacement” implies the original is no longer there.
Replacement as in the original doesn’t work well enough.