21st birthdays signify the coming of age for a person. It is the birthday most of us look forward to, as we get a kind of the legal sanction to be free, to booze, and to go pubbing with our friends. On a serious note, it is also the age when we feel mature, responsible, and start planning for our future and adult life. They are, thus, somewhat special and unique, and hence, require an equally special treatment. If you too are turning 21 soon and plan to celebrate it by throwing a party, then here are some awesome themes and ideas that you will surely find handy.