"Lets you alter the attached object so that you can interact with it using touch" - LittleBigPlanet PS Vita
The Touch Tweaker is a tool in LittleBigPlanet PS Vita that allows you to tweak the touch properties of an object.To access it, open popit in create mode and select the tools bag, use L or R to get to the Gadgets page and select it from the Object Tweakers section. Pressing square while hovering the popit cursor over the Touch Tweaker to open the tweeker menu to edit the Touch Tweeker's Properties, Movement, Trigger and Visuals. For the Touch Tweeker to work it must be placed to an object. The Touch Tweeker can be added to Microchips.
You can learn how to use the touch tweeker by viewing the tutorial available in the game.