asking a girl to hc at our school, its like required to have a creative idea. not to mention it makes the girl feel a shit load better, thus twice as likely to felashe you
i got a bunch that my friends and i did
fill her room with pirate themed stuff. you can buy little treasure chests from the party store. In each chest, put clues where the next one is. and when she gets to teh last chest have it say, "now that you've found my booty, give me yours at the homecoming dance"
if you have one of those like really small kid tents, set one up in her room and decorate it obviously. on the front say somethign like take a peak inside or whatever, and on the inside have a poster saying "it would be an "in-tents" night if you went to the dance with me" (it doesnt matter what you say as long as you use "in tents"
make a movie and have it being the ten reasons why they shoudl go to the dance with you. Say things that are true, but make them funny. My friend did it and it was awesome. just make sure you have someone that knows how to edit videos and put it on a dvd and make sure the last reason is like serious and kinda romantic.
put a bunch of alarm clocks under her bed and set them at a time really late at night. when she goes to sleep they'll wake her up and she'll look under her bed adn theres a poster saying, "im sorry to alarm you but i thought this would be an okay time to ask you to the dance" and make ALARM and TIME like fancy lookin
Fill her room with inflatable soccer, basketballs and beach balls (all beachball material. you can get them at the party store) and make sure theres a shit load. hang them up and have some laying on her floor and on her bed, just everywhere. and have a poster that says either "i didnt have the balls to ask you in person, so i figured i would do it this way" or "lets go balls out on the dance floor"