Time to design my first handheld weapon. Create a demiplane, preferably time accelerated, and build in it a generator system linked to a Crystal Output Transformer. Encapsulate the Transformer in a sphere-like configuration of semi-space portals that loop around to the other side. Place at least one additional portal in this area and link them to the ends of your gun-shaped implements of choice. Assign an AI control of the portals and Transformers, turn on your epic sub-woofer and accumulate infinite decibels. If you'd like to limit the hemispherical wave of destruction that ensues when you open the portal, just fashion a barrel out of Black Filters to make it into a cone or a beam.

Here's another interesting idea: get a sphere of uniform density and tether two gravity Fluxes to it so that exactly half of the sphere is in each one. Tether a Violet Filter to the sphere and then get an AI to modulate the gravity Fluxes to get the sphere floating perfectly stationary in the air. Finally, have the Fluxes directed in opposite directions.