Well!! Of course आप can dress up like Dean/Cas/Sam! And the संगीत of the party would be AC/DC, Eye Of The Tiger, the Weight(by Jensen Ackles!!) etc ;).
And for the games!!! A सूपरनॅचुरल Sober Drinking Game! Instead of booze, आप use चॉकलेट या cake ;).
And a game that lasts the whole party! Remember the season 3 finale when Lilith was hiding in Ruby? Well, a बिना सोचे समझे guest gets a sign of आप that he/she is Lilith! Throughout the party, ALL the lights will be turned off for a मिनट and Lilith will tap people's shoulders. As a person's shoulder is tapped, he/she will be possessed. At the end of the party, the people who are not posessed can guess who Lilith is! =)
And maybe before the party आप can try to invite Misha Collins over via twitter! And at the party आप दिखाना your twitter and hope he retweets you! :).
WRITE SCENES ON PAPER THEN DROP THEM IN A HAT &THEY HAVE TO ACT OUT THE SCENES THEY DRAW WHILE THE OTHERS TELL WHOS SCENES THEY ARE या WHAT EPIS FROM या WHATEVER,!PIN PICS AND HAVE PIN THE TIE या WHATEVER ON DEAN &SAM ,!HAVE सूपरनॅचुरल GOODIES कुकीज़ BROWNIES CAKE EX...DRESS AS UR FAV CHARACTER OF SUPERNATRAL!!!!
For खाना आप can have a cake with the face of Dean, Sam, and Cas या an impala cake.And maybe pies, burgers, and chocolate.
For the games आप could watch clips of SPN on यूट्यूब या आप can make one for everyone to watch, play SPN trevia game, Quiji board. OR! (this is my favorite) set up a homemade cardbord maze for people to crawl in and while they're in there आप can scare them with some of the scary characters from SPN. But make sure its strong enough so it would't break, dont put nails या any sharp things in there bcoz it might be dark, make it big enough for at least two people to fit in bocz people tend to turn around sometimes. आप can also put hidden prizes inside the maze for peple to find.
i had one of those we all dressed up as characters from सूपरनॅचुरल and not just dean या sam some of the deamons and other bad guys even bobby someone even came as the scarecrow from season 1 we played trivia games we had सूपरनॅचुरल related खाना one of my फ्रेंड्स mums made a cake of deans car it was fantastic we watched episodes of सूपरनॅचुरल and all the संगीत was from सूपरनॅचुरल at first my फ्रेंड्स thoght it was going to be lame but they ended up having a fantastic time it was loads of fun and we had a blast