Pocketknife 
To dream of a pocketknife hints of a friend who is reticent to show his true feelings for you.
Rattlesnake
To dream of a rattlesnake symbolizes your life journey and the passage of time.
Transsexual
To dream that you are a transsexual signifies your fears and confusion as to how you should rightfully behave. You show reservations in dealing with some emotional issues. If you are planning to undergo transsexual surgery, then the dream represents your anxieties about the procedure, recovery, and post-surgery.
To see a transsexual in your dream implies that both the feminine and masculine side of your personality is in disarray. You may be reluctant to discover yourself.
Upside Down
To dream that you are upside down represents that there is a problem in your conscious life that you need to fix. It can also mean that your initial presumptions are completely different than what you have originally thought.
Vaccination
To dream you are receiving a vaccination is an indication that a weakness exists within you. Consider what this weakness is and learn to overcome it. For example, you may be prone to procrastination. If so, learn how to motivate yourself.
To dream that someone else is getting vaccinated foreshadows you will see suffer disappointment in either your personal or professional life.
Celebration
To dream of a celebration symbolizes your quest for excellence and perfection. This dream may also be a way of giving yourself praise for reaching your objectives and for accomplishing difficult tasks. Perhaps you have performed a remarkable feat or you have helped someone out in a generous way. It can also represent liberation from a restricting issue or situation. These dreams are often an indication of a significant change or transformation in some aspect of your life.
Handwriting
To dream that you are handwriting indicates your creative and expressionist side. Take a look at what you are handwriting and how this may tie in with your waking life.
Pickup Truck
To dream of a pickup truck symbolizes diligence and the need to introduce simplicity back to your life.
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.
Snowboarding
To dream that somebody is snowboarding implies that you have been able to face your anxieties and develop your potential.