This is my first video tutorial on building a diffuser for the MT-24EX, so be gentle :)
The parts list is pretty expensive, and with the exception of the Gary Fong Puffer diffusers the rest can be done with common items that you might have around the house. One word of caution: Cutting the mounting bracket that comes with the Puffer diffusers will void the warranty, and so will hot gluing the finished diffusers to your MT-24EX (you can use Gaffers tape instead of hot glue). I am not responsible for any mishaps or mistakes that you might make...
Garry Fong Puffer diffuser -you'll need two and the sticker shock is normally $39.90 USD + shipping. I ordered mine directly from Garry's E-store and the plastic that he's using now is a lot clearer than the Puffers that I ordered about a year ago. A little less diffusion, but the light isn't as warm either.
Metallic inserts for a Lumiquest Big Bounce -you'll need one set ($17.95 USD + shipping) if you want to use the same reflector material that I used to cover the top and bottom of the Puffer's.
Manfrotto Diffusion Pack -I've been using the diffusion material in this kit for a lot of projects. 12"x12" sheets of a dozen different types of diffusion plastic. $22.95 USD + shipping and handling.
Sto-Fen Diffusers -Just to use as a frame to make the finished diffuser easier to attach to the MT-24EX's flash heads. $22.95 USD + shipping.
I know, it's expensive. I tried to find a cheaper solution that worked as well but couldn't...
What I didn't mention in the videos: I made a template out of cardboard that I used to mark the Lumiquest reflector material before I cut it.
You'll notice in the second video that the reflector that goes over the MT-24EX's modeling lights has a high arch to it. I've since re-designed the diffuser by putting the top reflector onto the Puffer while the diffuser was attached to the MT-24EX's flash heads so I could get a tighter fit.