Top down joint

Hi, I want to create a springy joint between a body that follows the cursor and a cube. I have reorientated the camera above the cube and set the cube to not be able to move along the y axis. I wanted to get the effect of gripping an object and sliding it around (like on an airhockey table being looked down from above.

Can anyone point me in the right direction of what kind of joint I would need and how to get a little bit of spring so when i move my cursor the panel follows.

Cheers