A cherry tomato is a lovely little vessel for many, many fillings.  

Cherry Tomatoes With Cream and Caviar
Ingredients:

• 36 firm but ripe cherry tomatoes about an inch in diameter
• ½ c sour cream or creme fraiche
• ½ oz sturgeon, salmon or whitefish caviar

Directions:

1. Remove any stems from the cherry tomatoes.
2. Turn them stem-side down on a cutting board or other work surface.
3. Carefully slice off the top third of each tomato, reserving these pieces for another use.
4. Scoop out and discard pulp
5. Invert tomatoes onto paper towels to drain.
6. Stir the sour cream or creme fraiche to make it smooth.
7. Using a small spoon, dab a scant teaspoon of the cream carefully and neatly on the top of each tomato. Or pipe in with  a small pastry tip.
8. Using the tip of a knife, place a tiny dab of the caviar on the cream.
9. Arrange the tomatoes on a platter and serve, or refrigerate for up to one-half hour before serving.

Tiny sprigs of herb, like dill, can be used instead of the caviar.

Serves:  36 hors d’oeuvres, 8 to 12 servings

Source: New York Times Cooking

Cucumber stuffed Cherry Tomatoes
Ingredients:

• 24 cherry tomatoes
• 3 oz cream cheese, softened
• 2 Tab mayonnaise
• 1/4 c finely chopped peeled cucumber
• 1 tablespoon finely chopped green onion
• 2 teaspoons minced fresh dill

Directions:

1. Placed the diced cucumbers in a strainer and shake on some salt.
2. Let them sit and drain while you do the rest of the prep.
3. Cut a thin slice off the top of each tomato.
4. Scoop out and discard pulp.
5. Invert tomatoes onto paper towels to drain.
6. In a small bowl, combine cream cheese and mayonnaise until smooth.
7. Rinse the cucumbers and dry on a paper towel.
8. Stir the cucumber, onion and dill into the cream cheese/mayonnaise.
9. Spoon into tomatoes.
10. Refrigerate until serving.

Source:  Oxmoor House

Bacon Cream Cheese Stuffed Cherry Tomatoes 
Ingredients:
20 large cherry tomatoes
1/2 c cream cheese, softened
2 Tab ranch dressing
4 (1/2-ounce) slices Canadian bacon, finely chopped (If you have some lean ham on hand, you can use it in place of the Canadian bacon.)
3 Tab minced green onions
1/4 tsp ground white pepper
1/8 tsp garlic powder
1/8 tsp hot sauce
Parsley sprigs (optional)

Directions:

By now, you get the drill.

Source:  Rants From My Crazy Kitchen

Cherry Tomatoes Stuffed With Avocado – Epicurious.com

Cherry Tomatoes Filled with Goat Cheese – Allrecipes.com

Cherry Tomatoes Filled with Steak Tartare – freshly ground beef tenderloin, garlic salt, finely dice onion, chopped capers, snip of chive on top