A cheap, easy way to make food fun and interactive is to use toothpicks.
I have used any and all - the umbrella kind, the sandwich kind, seasonal, you name it we have tried it in the Maley household.
I found bamboo forks in my baking cupboard and gathered Brant, 4, and Mason, 3, around the table. Before we eat fruit or juice it I always make sure I have one of the boys identify the fruit and the other tell me what color it is. Today I had grapes, strawberries and raspberries.
I told them we were going to stack our fruit onto a stick. The boys were really excited about this and actually pretended they were putting "marshmellows" on a stick to roast over a "campfire." Brant could fit three or four pieces of fruit on a stick at time and he ate about 4 sticks worth. Both boys enjoyed the process of it all: picking the fruit out by themselves and seeing how many pieces of fruit they could stack at a time.