Offer a math, business, science, other type of display that uses a
formula to display information.
Use text fields, and either radio buttons or checkboxes (perhaps
other components if you wish) for a user to enter information in the
formula.
Display the results on the screen.
Use a fancy background to make the elements appear on or near a related
image.
Use images in your display.
Sample topics could be:
Conversion of weight (kilograms/pounds), temperature (C/F), and vice
versa for each.
Your weight on various planets.
Amount of money after interest for 1,5,10 years.
Any topic that fits the concept of the project where you do a math calculation on some number.
Have the form remember the number you entered, so if you exit the browser and return it will save it. Also offer a Reset button the clear the data entered, should someone not want to remeber. You will need to store the states of the radio buttons or check boxes.