So, I made a cake and some decorated cookies in a very short space of time (it was one of those crazy weeks). And to speed up the decorating I used royal icing transfers for the cookies.
Royal Icing Transfers: Horse Silhouette Cookies
Print out a template. Tape onto work surface.
Secure a sheet of acetate over the template.
Using piping consistency royal icing, outline the design
then flood the area with flooding consistency royal icing
Once completely dry (allow 24hrs), slide a pallet knife underneath each decoration to remove from the acetate
Flood a cookie with royal icing.
And gently place the royal icing transfer onto the still wet cookie.
You'll find a recipe and explanation of royal icing consistencies here.