A guitar body of a guitar composed of acrylic material can be modified to produce a highly visual and aesthetic prismatic effect in which white light entering the front of the guitar body can be seen as many separate colors. By applying dichroic paint and primer to precision cuts made into the interior cavity of the acrylic base, colors can be generated by the white light exiting the front of the guitar body. Further, the guitar body may be comprised of different materials for its filler core (forming a sandwich of tonal wood and foam) which cause the guitar to be lightweight, while simultaneously enhancing the sound quality of the guitar.