Add Multiple DB Entries By Checkbox

There are a lot of references on the net on how to delete multiple entries in a database by using a checkbox. What I would like to do is add a checkbox to the output of a query (ie. bunch of names).

Then be able to select some of the names by clicking on a checkbox and when submitted, add those checked names to another database (insert). Similar to a shopping cart selecting multiple products but when submitted, it does not add them to the checkout, it adds them to a database as new inserts.