Sadly my ring flash that I use with my Canon MPE65 mm has died. I do have a twin flash but I really find it gets in the way and hate using it. Any ideas on how to either a) create a new diffuser for a new ring flash? b) any advice for using the twin flash (it is the Yongnou Y24-ex flash. I did buy custom diffusers for it - and they are useless - really get in the way. The seller was helpful but I really hate them - others might have a different experience).