I've performed this many times, especially in restaurants, and it does get a good reaction, however
the clean up is not the easiest. One of the gimmicks is thin, a bit fragile, and a tight fit, so
getting clean is possible, but far from easy. If you have extensive sleight of hand experience, it
shouldn't be a problem, but I think there are many who will try and either get busted or ruin their
gimmick. (The effort required telegraphs easier than most cleanups, so stronger than average
misdirection is required).
Also, one word of caution. I handed this out for examination
once and a spectator commented that it wasn't a brand they had ever seen before. And then,
suspecting magnets, they stuck it to a fork! A normal chapstick doesn't do that, so I was busted and
just made a joke about it. Not ideal at all! I also had another spectator comment that the cap
looked "fake." So, lately, I've just been setting in on the table in front of everyone, rather than
inviting a thorough examination.
If the thin gimmick were more durable and easier to
steal, I'd probably give this 5 stars. As it is, your mileage may vary.