Shower decorations for a deck? Other decorative touches or ideas?

jencnh

My daughter's shower is coming up in June and I'm holding it at a place that has a function room with a large attached deck. I'm hoping to have the whole thing on the deck, weather permitting. The food (a buffet) will be kept inside the room.  The deck has tables with umbrellas. I'm trying to come up with some ways to add decorations or cute displays (the railings are a clear plexi-glass so not sure if something can be hung from them). I'll be adding centerpieces to the tables, but am looking for other little decorative touches that are elegant and cute.
I was thinking of a doing some kind of cute display with outfits that I buy (something on the idea of the clothesline display). Also thought maybe I could do something with books (yes, provided by me). Ideas??? I did consider display baby photos of the mom and dad as babies but there are limited pics of the dad so not sure if it would be fair to do mostly mom pics? Would love some other ideas to make it pretty and girly!
The theme is pink and white and owls.

Thanks in advance for any input!