MissChievous, does your coastal scent stippling brush look like the one in the picture? I got mine and the black hairs are much longer.
I think the stippling brush from coastal scents was a great deal for only $7 (it was on clearance, regular $9) but it is not very much like the 187. The white hairs on this one are very different from the 187 to me, so I'll probably only use this for powders. None of my coastal scents brushes had an odor. The Italian badger buffer brush was okay, but it could be a little softer. The cheaper deluxe buffer brush feels softer to me. The Italian badger chisel and blending brushes are great eye brushes.
Here are some pictures. Sorry they are unwashed. I was going to wash them before taking pictures, but I think it's easier to see the white bristles this way. Please keep in mind that in the top/bottom pictures, it was taken at an angle, so the the 187 is closer to me and will appear a little bigger.
Here is a pic of the coastal scents brush (top) next to the 187 (bottom) and me in the green (Hello! I've been a lurker for a year):
CS on the left, MAC on right.
Not very much alike to me, it looks and performance.
The best match I've found so far is Lumiere's Duo Fiber Optic brush. They also have a Duo Fiber Optic Powder and Duo Fiber Angle, but don't get those because they are not as dense. The Duo Fiber Optic brush costs twice as much as the CS brush, at $18, but I got it during one of their pre-buys. I'm not sure how much it was during the pre-buy because I bought all of their brushes in one big set.
Lumiere's Duo Fiber Optic Brush on the top, MAC on the bottom
Lumiere on the left, MAC on the right
The bristles are MUCH more similar to MAC's. It's a bit smaller than the 187, but not as small as the 188.
In terms of handle length, the CS is the longest, then MAC, then Lumiere.
I also have the 187SE, and Lumiere's Angle and Powder Duo Fiber (Actually I have almost all of their brushes from that pre-buy) if anyone wants pic comparisons.
Sorry, I didn't mean to take over your thread, MissChievous!
EDIT: Someone pointed out to me that they discontinued this brush and replaced it with a new one. Maybe the new one is much better! I wish I had known they were going to do this!