Most scrubber scripts only remove prim-persistent effects, and giving out LMs isn't one of those. Just delete the script from the fangs.
If you need a scrubber for anything else, there's this one...
default
{
state_entry()
{
llSetSitText( "" );
llSetTouchText( "" );
llParticleSystem( [ ] );
llSetText( "", ZERO_VECTOR, 1.0 );
llTargetOmega( ZERO_VECTOR, 0, 0 );
llSetCameraAtOffset( ZERO_VECTOR );
llSetCameraEyeOffset( ZERO_VECTOR );
llSitTarget( ZERO_VECTOR, ZERO_ROTATION );
llSetTextureAnim( FALSE , ALL_SIDES, 1, 1, 0, 0, 0.0 );
llStopSound();
llOwnerSay("This Prim is Clean... "

;
llRemoveInventory( llGetScriptName() ); // vanish without a trace...
}
}
<<edit, I just noticed you said they were no-mod. Looks like you'll have to do without them. I never knew anyone gave away 'nagware' freebies in SL.>>