Making a Paper Prototype - Paper Prototyping: The Fast and Easy Way to Define and Refine User Interfaces - page 64

Figure 4.14: Disabled ("grayed-out") controls.
Disabled controls
If a menu option, button, or other control is initially disabled until the user does something, make a
version on removable tape with a gray marker and place it over the same element in black. Once the
user has done what's necessary to make the functionality available, remove the grayed version to
reveal the enabled version underneath. (In the example shown, there is still tape covering the word
"Can't" before Undo and Repeat.)
Figure 4.15: Cursors.
Cursors
I don't bother to prototype the standard arrow or I-beam cursors—this level of detail isn't needed for
most paper prototype tests because the user's finger (or pen) shows where they're clicking or typing. If
your application uses cursors to convey information (for example, an image editing application that
displays a different cursor depending on the mode), draw them on small pieces of paper or
transparency and place the current one somewhere on the interface as a visual cue for the user.
You'll probably want to have an hourglass cursor for those times when the user is waiting for the
Computer. If you draw the hourglass larger than life on an index card, users will laugh and say,
"Hey, just like my real computer!"