Better hope it's edible, then, because if it smells like food, kids are going to put it in their mouths.

There's a reason scented crayons smell like "leather jacket" or "talcum powder" instead of "grape" and "cherry"...

If you make your own, you can add kool-aid mix to make it smell nice. Kinda fun. Also, most play-dough is non-toxic.... especially homemade play-dough

If you're interested in making your own scented playdough, here's a link to a recipe from my son's preschool (using food coloring and essential oils - or Kool Aid for both color and scent, as Melissa suggests above): http://www.funfindsformom.com/blog/aromaplaydoughtherapy#more-51