"I thought my little experiment might interest you," he said.
Your study team are going to want to see how that little experiment turns out.
"I see you want to carry out some little experiment."
His true purpose was a little experiment he'd thought of himself.
After our little experiment, I promise to let you go.
There's only, what, four or five people doing their little experiments.
Now here was the perfect subject for a little experiment.
I had more questions before we continued with our little experiment.
His dangerous little experiment was running now and couldn't very well be stopped.
Here is a little experiment you can try with your friends.