Instructions
Find an object you can place in your Sackboy's hand while playing through the main story or purchase a costume that comes with a hand object from the PlayStation Store. These items are scattered throughout the game's 51 story mode levels and can be obtained by popping the item's bubble, acing a level by collecting all of its items or by completing a level. Examples of hand objects include a frying pan, a pirate's hook and a wooden sword.
Press the "Square" button to bring up the Popit menu. Highlight "Customize Character" and press "X."
Press "R1" twice to select the "Body" section of the Character Customization menu.
Scroll down to the "Hands" section of the Body Customization menu.
Highlight the hand object you want to appear in your Sackboy's hand and press the "X" button to select it. The hand object is enabled and your Sackboy will be seen carrying the selected hand object around.