8x8" on fabric (with an extra inch of border on top for quilters; this won't affect a swatch purchase),
12x13.5" on wallpaper (two on a swatch),
13x15" on gift wrap (ten per roll).
Note that the text will probably not be legible on the fabric (but might be readable on an extremely smooth fabric such as the poly satin or silky faille, if your eyes are sharp!)
Other sizes and variations available here.