Mini Maglite upgrades for cheap(er)?

i know Teralux makes a few LED upgrades for the incadescent-bulb Mini Maglite, but the prices easily exceed that of a complete, more powerful flashlight on any of the budget vendors websites. that said, does anyone know of an upgrade (not the Nite Ize) that is more in the sub-$5 range? reason i ask is because tonight, while retrieving something out of my fiance's car, i found yet another Mini Maglite in perfect condition. that makes three that i have and would like to use if i can get them to pump out more light. i keep coming back to this even though i have a few lights that completely blow away the Mags. i guess it's that simple, solid body. maybe nostalgia for my dad's old Maglite that was big enough to club a bear with.

I successfully revived my MiniMag following old4570's instructions. The beam is somewhat ugly and all flood but very bright compared to the original incan output.

Venerable Mini MagLite is special. Virtually any small-diameter, rigid stick works with these fighting arts, and a lot of martial artists carry small flashlights.