Amnesia
To dream that you have amnesia suggests that you are trying to block out the rejected or negative aspect of yourself. You are afraid of change.
Fairy
To see a fairy in your dream indicates that you are in search of some help or advice for a problem or decision, but may not want to directly admit you need help. In particular, if the fairy is evil, then it suggests that an aspect of yourself needs to be set free. The fairy is also symbolic of your soul and the feminine aspects of yourself.
Billionaire
To see or dream that you are a billionaire points to your desires. The dream may be an inspiration for you to work harder. Alternatively, the dream refers to your inadequacies and shortcomings. There is a void in you life.
Mardi Gras
To dream of Mardi Gras indicates your need to release your inhibitions and let yourself go.
Swiss Army Knife
To see or use a Swiss Army Knife in your dream implies that you are adept to various situations. If you are looking or buying a Swiss Army Knife, then it means that you are lacking a certain skillset to accomplish a task. You need to seek help from others.
Koala
To see a koala in your dream represents your link the physical world, the subconscious, and the spiritual realm. The koala also symbolises security, nurturance, protection, and/or feminine qualities. You may be expressing a desire to regress back into infantile dependence and escape from your daily responsibilities/problems.
Magic Carpet
To dream of a magic carpet implies your desires and wishes to escape from a situation, relationship, or responsibilities. The dream is similar to a flying dream, so you may want to look up flying.