get a small pin and pit it right through the plunger. it will release the suction pressure =]
if its just a small suction cup try some meths or kerosine and or dishwashing liquid or cooking oil!
Proffesionals use a special type of suction cups, but a hammer works too.
I wouldn't want my last suction cup to slip, just as I reach the top of the window. The geckos have a very clever suction cup design of the soles of their feet.
The iPhone is not made to be opened, But if you know what your doing their are 2 small screws at the bottom by the charger, your remove them and use a suction cup on the screen to pull it up
Use a pump and hose.
Most GPSs that are designed for use in vehicles will come with a holder which attaches to your windshield. This is usually done through a small rubber suction cup. It is also possible to just place the GPS on the dash or on the seat besides you.
use a bat
It uses its suction-cup-like mouth to absorb food.
Use a hammer
A paint pen. then remove with a razor blade.
Support system....they have suction cup mouths & they use it to clean parasites from the shark.
Nurses and doctors use a suction tube to remove saliva from a patient's mouth when the patient is unable to swallow. However it is not simply a tube, but a tube connected to a suction machine.