I really like Royal&Langnickel's Silk Pro Mini Smudge Brush! So far its the best R&L brush that I've tried. Its well constructed and pretty dang useful! The C402 brush is great for smudging out pencil and powder products, or applying makeup in a precise manner. I reach for this brush often, I may even pick up a second one at IMATS this year. I recommend Royal&Langnickel's C402 to those that love a smokey, smudgy look.
Royal&Langnickel's Silk Pro Mini Flat Smudge Brush (C402) is an "extra small flat smudger that "makes it effortless to achieve the smokey eye with minimum effort needed." This natural haired brush (the exact material is not stated) sells for $7.99, I got mine at Sydney IMATS for about $5. Royal&Langnickel products can be ordered via the brand's website, which offers international shipping. This pro brush line can also be found in a handful of beauty suppliers. Royal&Langnickel do not mention where this brush was made.