Useful, useless?

hot frogThe 3 wise men popped by my flat and they left me the following surprises:

  1. It’s plastic with a neck and a screw top. It often has a protective covering. They are very popular in England and as a child I had one in the shape of a frog. You use it in bed. What is it?
  2. It’s a type of tool. You hold it and twist your wrist to use it. You use it to tighten metal objects.  What is it?
  3. It comes in 100s of different colours and it is usually sold in little bottles. You paint it on a part of your body. Although both men and women wear it, it is more common for women. What is it?