When playing my last order with Marco, I noticed these alternative options for pop bumper lighting called popblast. I thought they looked neat, so I ordered both varieties to try. I haven't really noticed them mentioned or used before.
Unfortunately they only had 1 of the ring variety in stock, so I'll have to place another order because it turns out those are my favorite.
Here's a pic comparing the ring style to the module style to a plain old 2smd bulb in my Getaway.
The module style fits into the bumper body while the ring style just kind of floats under the outside edge of the bumper cap.
The module style doesn't seem interesting or different enough to justify $6 USD per pop, but the ring style is cool enough to make the investment worthwhile.