Vomiting over a long period of time is very dangerous to your body. Your body has to have electrolytes and cannot function without them. Vomiting a lot can deplete your body of electrolytes and cause heart failure, no matter what your age is. See the Related Link. Also bear in mind that vomiting stomach acids up through the esophagus and mouth can cause ulceration to the esophagus, mouth and throat, and even destroy the teeth.
A comet with a period of 200 years or more.
Long-period comets have periods of over 200 years.The longest would probably be somewhere around a million years (comparable to the orbital periods of objects in the Oort cloud); much longer than that, and it will go away far enough to be captured by the gravitational field of other stars.
Astronaut candidates do "parabolic training" on a plane nicknamed the "Vomit Comet" (due to its tendency to induce motion sickness in passengers) so that they can experience weightlessness before being launched into space. If a potential astronauts is found to not be able to handle weightlessness, it's better to find that out before they actually get sent there for a long period of time. Also, weightless training gives them experience in how objects behave in zero-gee, so it's not a surprise when they get there.
Uranusus orbital period is 32.234 Earth days
Pretty long, you tend to get an item roughly every hour or so. Every time you get an item, it rolls the dice to determine what you get, to get a random hat, the percentage is 0.33% pretty tough to get one.
I can think of no household item that is 1mm long. It would be very difficult to pick up and manipulate.
Pencil
A pencil is about 1cm thick
a microphone for a mobile phone is 0.5cm
The guide rod on my venetian blinds is a metre long.
A speck of dust is about as long as 1 millimeter; a speck of dust can be found in all houses.
Generally they do as long as the item is within the warranty period.
Capital Spending.
as long as it takes me to vomit
That would depend on the amount of vomit and its makeup. (Some vomit is mostly liquid, some is mostly chunks.)
This item was available for a short time during the Christmas period.
..... If you have a household runway maybe