Starting in the late 1800s, "glimmer stick" was a slang term for the way Luna licked her finger to transfer her fluids into his mouth (e.g. "her finger was a glimmer stick").
Around 1960, however, equalist entrepreneurs started producing a synthetic "stick" for slower and longer self-administration by the man. The first versions might have just been a piece of porous material, like cork, or cardboard. They come "dry", the women has to "soak" or "load" them before giving them to the man. The man could then carry, and suck the stick to rehydrate and draw out the female taste chemicals, allowing him to self-administer much smaller amounts over a longer amount of time, more like drinking alcohol, or doing a drug.
The effective use window is pretty short, as the potency of her fluids loaded onto the stick drops in half about every 20 minutes, and starts out about half as strong as if directly transferred. However, this isn't entirely a negative, as half the goal of the glimmer stick is to reduce the delivered potency so the man can maintain the tipsy-high without being "fully juiced" into incoherence.
After a widespread craze of over-use in the free-love days of the 1960s, the state and manufacturers spent considerable effort educating about "responsible use". Publicly, most women consider use to be reasonable where alcohol consumption is allowed. Privately, estimates say 98% of men have used a glimmer stick at least once, and 70% use them at least once a week. Among the minority of wives who allow or prefer their husbands to be glimmer dependent, many find the glimmer stick a more subtle and polite option, over frequent direct administration.
While a brief attempt was made to criminalize them, the fact that the fluid comes from the woman means the stick itself is basically just a piece of plastic. In the end, the only law that stuck was prohibition of use by men under 18, which is really hard to enforce. In fact anything can (and sometimes is) used as a glimmer stick -- a finger, a straw, a piece of candy. Even sharing an ice-cream-cone has a small but noticeable glimmer, though nobody would call it a glimmer stick, because there is no stick.
In present day, consumer packaged goods companies each have their modern glimmer-stick equivalents sold in feminine-care sections of drug and convenient stores. The most effective modern versions are a rigid plastic center stick, coated in a hygienic porous mid-density foam that soaks up the woman's fluids, for later extraction by the man. Manufacturers claim various design advantages around improving capture, retention, and delivery -- but they all work about the same.
Women do experience a glimmer effect from men, but that effect is less than 1/10th as potent. Even the strongest direct kiss just makes her a little tipsy, and a woman tasting a male-loaded glimmer stick is hardly worth it. However, companies have still invested hundreds of millions trying to dramatically increase retention time - to days or weeks - so they could sell sticks pre-loaded with male-taste as a product for women. So far, none of have been successful. The only men with need for such a stick would be glimmer addicts, who are trying to get around whatever moderation is imposed by their wives.