grating wheels,
the best come from
www.creativelaser.de
a machida grating from machida
or a machado grating from creative.
those are ultra wide effects with ultra dense beams.
clear linear plastic gratings from One Stop Laser Shop to glue over your bounces once in a while they're cheap and very effective.
maxys modules and a combining dichro from one stop + a MM1 type mount, = rgy for about 300$ US.
one beamtable actuator for the wheel and one for the machida/machado
cheap upgrades, both wow customers. you can also scan through the grating wheel and plastic grating, if your in a audiance scanning region
Steve