Use food coloring in the water or could use blue jars
Ice Cream in a Jar!! - It's Written on the Wall blog
Lots of summer fun ideas at They Are Crafty - including these "rocket dogs"
Cupcake liners under mason jar lids! Great idea for an outdoor party to keep the bugs out of your drink
Mini Red, White & Blue Trifles - Eat Drink Eat
Best Deviled Eggs Recipe - Taste of Home tip - put the eggs in cupcake liners in muffin tins to serve so they won't slide around on the platter or your plate.
Simple Lemon Fruit Dip Recipe