Annelein's recent post on small, quick setups had me looking in my vegetable bins all weekend ... but I made fruit salad for my houseguests and didn't paint the ingredients beforehand, but I did have a slice of cantaloupe left, and finally had a chance this evening to try it myself.
Here are four 2x3's I did tonight after everyone went home. I tried to vary my color choices, as Annelein suggested, but it's hard: I'm so used to dipping into the colors I feel comfortable with.
Here I chose a complimentary blue for the background behind the cantaloupe, but I like the analogous pink, below, much better--maybe because it has more intensity than the blue, which got a little grayed when the orange ran into it. And pink and orange is just one of those color combinations ... you can't go wrong.