The whole window will have a one foot wide window sill. I will have to show you the place to get a good idea of things. Basil planted in teacups for the kitchen, cheap and pretty teacups planted with fresh herbs on the window sill.
Cucamelons: grape-sized watermelons that taste like cucumbers with a tinge of lime. wiki - Vernacular names include mouse melon, Mexican sour gherkin, cucamelon, Mexican miniature watermelon and Mexican sour cucumber