Problem is, the Remmy has no parts to drop when you pull the pin...other than the cylinder. Not so Colt.
I realize the wedge on your Colt isn't SUPPOSED to pop out of the barrel lug, but rather, catch on the far side and be retained by the screw. That being said...I've picked one up off the carpet more than once.
I'm willing to do that at the range on a loading table, but not while walking afield.
G Dog has the correct answer; stuff your waistband with Colts.
The "extra cylinders" available with the package deal brassers (Pietta) are unengraved as are the originals. I have not noticed whether they are for sale individually or not.