If your boutique carries apparel, you really can't go wrong carrying this line of shirts imprinted with the Vivid logo, one of adult's most recognizable brand names.
The cute, women's baby tees say "Vivid Girl" for all of those armchair Tera Patricks out there, and the men's tshirts have different variations of the Vivid logo on the front with various sayings on the back. A popular one I've seen around says "CASTING AGENT" on the back.