Device to install on a bottle to only spill drops When heating up cold food in microwave it oftens comes out pretty dry, and I like juicy food. So I add 1 or 2 teaspoons of olive oil on the food before heating it. I'd be easier though if I had some kind of small device
What you are looking for is pretty common and can be bought in most markets in the kitchen section. Or ordered online by search "olive oil bottles".  They look like this: