Hmm for me all my videos are DIY to cut cost, except the morning express highlights video which I engage professionals to do.
I played my DIY growing up photo montage as a looping video during reception with hotel's music list as there are no slots for me to play during the event.
Then I play our DIY ROM highlights before first march in, then DIY animation video and morning express highlights before 2nd march in.
you can view them if you are interested at
http://siegebox.net/blog/?cat=38
the password for those video that are locked is my forum nick.
I locked them for erm copyright issue with music company? haha