Sounds like it was a HUGE success!
There's a boy who's come to two of difficult child 2's birthday parties and one of difficult child 1's and every single time his parents come a minimum of 30 minutes after the stated end time for the party. These were all parties at an establishment, not at our house, so we couldn't leave until this boy's parent(s) came to get him -- so I can relate.
It's too bad about the cake and the spilled soda, but good for Duckie being able to see the silver lining to it all.
I PM'd you my cell, so you can give me a call Friday and hopefully we can meet to say "hi" some time between performances.
Sounds like her 8th birthday will be full of wonderful memories!