Decorating a Parade Float?

OOOUUUU...Sounds FUN!!
That is a good dream! I bowled a 290 once and will remember it forever!!
How about making an oversized bed with sleeping figure (or giant paper mache PIN with a sleeping face on it) with a sign that SAYS DREAMING OF A PERFECT SCORE above it's head. You could hang some pins out on springs all over the float/bed (like they were hit with a bowling ball) too...

My alternative idea would be to replicate a bowling lane and have someone look like they are actually bowling on it (going through the motions, perhaps with a dark balloon but NOT really letting go of the ball) with the kids hidden or swatting down on the other end of the 'lane' holding one pin each.

When the bowler LETS go of their imaginary ball the pin kids either jump up with their pins in the air or throw them up in the air and catch them from down on the float - OR have the pin kids throw CANDY out to the parade attendees at that time! Have the STRIKE SOUND piped in somewhere too when they do so too!
Let me know what you do! Sounds like a good time!