Many thousands of chemical molecules are used in the perfume industry, and the result is gorgeous. You can pay for a personal scent/cologne to be custom designed for you, with the perfumier taking into account personal preferences to create something unique to you.
Chemicals (in this case organic) can be combined to encode data [Smartwater link].
This idea combines both. The perfumier selects aroma components to suit your preferences, but molecularly encodes your message. Could be “Hiya”, an email address, or “Leave me alone” - your choice. Or the coordinates of the secret nuclear base in the arctic tundra.
Probably need a gas chromatography set up to de-code the message though.-- Frankx, Sep 26 2019 Smartwater https://www.smartwater.com/Data encoded in combinations of chemicals [Frankx, Sep 26 2019] Expensive scents already transmit a message: "I am shallow, insincere, credulous and value form and appearance over functionality. I also probably have a poor body image and low self-esteem. "
Then again, jewellry does the same job ...-- 8th of 7, Sep 26 2019 That's cheap jewellery, [8th]; one of your 'e's has already fallen off.
Either that, or someone has pinched it to sell at a rave.-- pertinax, Sep 27 2019 I disagree about jewelry. Throughout history some of the most powerful and beautiful, confident women have adorned themselves with gems. It adds a touch of glamour, and helps to make your plain outfit, special.
I don't care if it sends a message to the opposite sex or not, but if I look down and see a sparkling ruby bracelet on my arm, it makes me happy. There, tada, that's my two cents.-- blissmiss, Sep 29 2019 If I look down and see a ruby bracelet on my arm, I think "shit, I've put on the wrong arm again".
Take no notice of [8th]. His idea of sophistication is having a separate napkin and handkerchief.-- MaxwellBuchanan, Sep 29 2019 That's pretty rich coming from someone who's sibling is clearly convinced that "spittoon", "urinal", vomitorium" and "Christmas tree urn at the orphanage" all refer to the same item of furniture.
It woudn't be quite so bad if it weren't for the fact that your family are almost entirely responsible for there being a requirement for an orphanage in the first place.
[bliss] if you know where to get a sparkling ruby bracelet for two cents, we strongly advise that you keep quiet about it if there are any Buchanans in the vicinity. It's quite something when the Ferengi start whining about "unfair contract terms" and "unethical business practices" ...-- 8th of 7, Sep 29 2019 Snooty people with your napkins and forks and such...-- Voice, Sep 29 2019 You have no idea ... for a formal banquet at Buchanan Towers, the place setting extends up to three metres on each side of the guest's seat, and requires two footmen to assist with the cutlery.
The shocked silence when an inattentive guest reached for the wrong salt spoon was startling; it even shut up [MB]'s Aunt Malignata for several seconds, and the only thing that can do that in normal circumstances is a scold's bridle ...-- 8th of 7, Sep 30 2019 random, halfbakery