Greeting cards exist in many forms—homemade, store-bought, musical, and Internet cards—just to name a few. With the availability of graphing calculators, the creativity and fun of making greeting cards can be brought into the mathematics classroom to enhance students' understanding of functions. Graphing-calculator greeting cards can take on different characteristics and can be created by students at different mathematics levels. A central objective of the task is to use algebraic equations to create desired graphical designs that, along with strategically placed text, extend a calculator greeting. The algebraic equations used can range in difficulty from linear functions in rectangular coordinates to polar or parametric equations. Algebra students who are learning about linear equations, as well as advanced mathematics students who are working with a broad range of families of functions and relations, can create calculator greeting cards.