Dang, I was about to say how selling one or two cut decals usually takes more time than the job is worth, and I still kinda believe that. However, I must say that not charging for In loving memory decals is all sorts of classy.
Our store has a laundry mat right next door, and we get lots of people just wandering in looking for a way to kill 20 minutes while their whites are drying. This was beginning to eat huge chunks of time and 90% of the time, didn't result in any sale at all.
We decided that we needed a buffer of pretty pictures to give browsers something to look at until their laundry finished. We made a binder of different fonts, 4x4 decals, and other generic clip art (all of which were simple and easy to weed if we did sell one.) This worked incredibly well, so well that we ended up expanding the binder to include a portfolio of our higher end work. It gives people who are just looking something to look at, and saves us lots of time.