Still, if you don't already have one, you might consider embroidering your word onto the pillow, using an iron-on transfer, or even using a stencil and a fabric pen or paint. At Michaels ...

Wipe away any dust with a tack cloth or wet cloth. Paint two thin layers of glue onto the shiny side of the stencil sheet. You can use transparency films as well, if that is what you have on hand.