Small drink umbrellas (1 per cupcake, available at party stores)
Prepare the cake mix according to the cupcake directions. Add blue food coloring, drop by drop, until the batter is the desired shade of ocean water. Put liners in the cupcake pan and fill each cup two-thirds full with batter. Submerge 2 Swedish fish in each cup. Bake as directed and let the cupcakes cool.
Scoop half of the frosting into a bowl and add blue food coloring until the color matches the batter. Frost half of each cupcake blue (making waves if you like) and the remaining half white.
Crush graham crackers in the sealed ziplock bag and spread them over the white side of the cupcake to resemble sand. Spread blue sugar crystals onto the blue side of the cupcake.
Bend a third of a stick of Fruit Stripe gum to look like a beach chair and position it.
Add a gumball (as a beach ball) and an umbrella to finish your beach scene