I see a craft store trip in the near future. (Bottles are aquapod water bottles). For an ocean bottle use half water & half baby oil with a few drops of food coloring, for a slow motion bottle use light corn syrup.
This is, hands down, the best soft sugar cookie recipe, complete with Amazing cream cheese frosting. So much better than store-bought! Doesn't have to be cream cheese frosting though, could be vanilla or buttercream.