Cartwheels 
To dream that you are doing cartwheels implies that all aspects of your life are or need to be in harmony. You should be able to tackle problems with confidence and inner strength.
To dream that you have problems doing cartwheels indicates that you doubt yourself and don't have faith in the choices that you make. It can also indicate that you are unorganized and unable to set priorities. Your life isn't traveling in the exact direction that you planned.
Understudy
To dream of being the understudy in a play or production is a sign that you are the only one standing in the way of a possible successful future. There is an implication that you may need to grow in confidence and put yourself out there a little more to achieve your ultimate success.
Hair Dryer
To dream of using a hairdryer speaks of the search for a quick fix and is a reminder that it can be better to allow nature to take its course. A situation may be currently unfolding and applying an organic attitude to it may result in a broader outlook and a highly satisfying flow of energy.
Screwdriver
To dream of a screwdriver signifies your desire to repair a damaged situation or relationship. It may also represent a person in your life who needs your help to deal with certain issues.
Palm Reading
To dream that your palm is being read signifies your objectives and aspirations. It provides a picture of how you want your life to be and which path you want to take.
Sledgehammer
To dream of a sledgehammer implies that you have built a barrier between yourself and others. You should remove this barricade and reveal your feelings and emotions.
Walking Stick
To dream of a walking stick should be seen as a warning. You are making rash decisions in your waking life and over-committing yourself.
If you are using a walking to stick to move, you may want to consider how much you rely on those around you for advice. Are you taking advantage of a friendship?
Vending Machine
A vending machine in a dream symbolizes quick and easy rewards. Simple efforts can give you surprisingly good results.
To dream of a vending machine which will not release its contents indicates frustration. Your goals may be just out of reach but an invisible force has kept you from reaching them. It may be time to take a step back and reassess the situation.