Can you recommend a song other than Here Comes the Bride for the bride to go down the aisle. Could Butterfly Kisses work?

I'm not familiar with Butterfly Kisses, but you can use almost anything you like. One very popular processional piece is Canon in D by Pachelbel (I've heard this played in 3 out of 5 of the last weddings we've attended). Also Jesu Joy of Man's Desiring by Bach is beautiful and very popular for bride's to walk in by (the other 2 weddings played this one). The Advice section in EZWeddingPlanner has lots of music tips, including processional music suggestions.