Sto-Fen Omni-Bounce OM-EW Flash Diffuser (for Canon Speedlite 430EX, 430EX II, 430EX III) $10.99 B000CLNHXY
Sto-Fen Omni-Bounce OM-ET Flash Diffuser (for Canon 600EX-RT & Yongnuo YN600EX-RT) $16.95 B0083Z6R4W