Need a fantastic summer dessert!

[danner]

My son's first birthday is in July. We will be celebrating in a small way at the big family "picnic," which is actually at our Aunt's house, a nice big place on a cliff overlooking Lake Erie.

So there will be food. Chiavetta's chicken, watermelon, a flag cake, barbeque pizza, whatever stuff people make to bring etc. etc.

I'd like to serve something pretty awesome that can be left outside for maybe an hour. It doesn't have to be a cake, but it can be. We will set up a table with our birthday ring, a ceramic signature plate and maybe we will sing.

I'm hoping for some fun ideas that don't include food coloring!