Assuming you mean a water solution of coffee, anything that floats in water (has a density of less than 1gcm-3) will float; this includes ice, dry wood, a balloon fiiled with air, etc.
There is no specific collective noun for a group of floats, in which case, general collective nouns are used according to the situation, such as an armload of floats, a bin of floats, a case of floats; or, you could be creative; a flight of floats, a flotilla of floats, a flurry of floats.
Floats
Very Fancy Floats.
You get floats in the summer catalog.
Floats - drink - was created in 2008.
The Spanish word for floats is "flotadores."
it floats because it floats, and that is the answer. thank you thank you!
they used boats and floats, ICECREAM FLOATS
Floats are called "carrozas" in Spanish.
The duration of Hope Floats is 1.9 hours.
A magnet will attract the iron leaving the coffee behind. It is also possible to separate them by flotation on water; add some detergent to the water to break the surface tension so the iron powder can sink while the coffee powder floats.
There were five floats in the Obama parade.