There are multiple techniques players can use when playing Pucket:
The Garner- This is where you drag a puck back against the elastic and let go, first with one hand and then the other. This produces the highest firing rate but only Mr. Garner himself can combine it with good accuracy.
The Harpist- This is where one hand pulls back the elastic as the other places a puck in front of it. Be sure to let go of the puck before letting go of the elastic!