Cake Decorating Ideas at Camp

Sleeping Under the Stars Cake
A sturdy plastic zip-top bag is an excellent substitute for a pastry bag. Use a spatula to transfer frosting to the bag until it's half full, and use a scissors to snip off a bottom corner of the bag. Squeeze gently to pipe out round ropes of frosting. To make a camp-out cake that features people in sleeping bags, frost a smooth surface on a cake with a spatula, then use frosting from the zip-top bag to pipe on rectangular sleeping bags and tiny heads poking out of the bags. Crumbled graham crackers on the surface of the cake can stand in for "boulders" or rocks on a hiking trail.
Pool Party Cake
Decorate a rectangular sheet cake in the style of a swimming pool to celebrate summer fun. Use a spatula to spread a flat layer of light-blue icing on a rectangular cake, and mix up several small batches of different-colored frosting. Load each color into a zip-top plastic bag, and snip off a corner of each bag. Use the bags to pipe inner tubes, small people, buoys, and pool toys on the cake. Finish by sticking plastic umbrellas on the cake's corners or piping a "deck" border with white or black frosting around the outside of the cake.
Tent Cake
Using just a serrated knife and some butter cream frosting, you can decorate a cake in the shape of a tent. Begin by baking a two-layer or a three-layer round cake and stacking the layers together with butter cream frosting in the middle. With the serrated knife, carve the cake into the shape of a tent. Cut away the curved sides, and angle the top down to form a triangle instead of a flat surface. Use the knife to carve a small triangular indentation at the front of the cake to make a door. When you're finished making cuts, frost the cake all over with butter cream. Transfer a small amount of black buttercream to a plastic zip-top bag, and cut a tiny hole at the corner of the bag. Use the frosting to pipe on shape details and a door for the tent.