Growing a jeweled rose makes her own chalk / ice combo using corn starch, baking soda, water and food coloring. It melts really pretty and kids will really enjoy it on hot summer days.
Good for ages 2 and up.
Get the instructions here:
http://www.growingajeweledrose.com/2013/05/play-recipe-ice-chalk.html
Get the instructions here:
http://www.learnplayimagine.com/2013/07/fun-in-sun-watercolor-ice-art.html
Reading confetti uses molds to make star shapes.
Get the instructions here:
http://www.readingconfetti.com/2013/05/ice-chalk.html
Typically simple draws fishing scenes.
Get the instructions here:
http://typicallysimple.com/summer-kids-craft-ice-chalk/