Cant find circle taillights??

I want to put a set of circle taillights in my tailgate. I want them to be about 4"inches around. Is that possible? Does anyone know where i can find them? I need the to be flushmount. I am molding whole back end shut soon. I thought about some trailer lights from walmart but they have this black ring around them and i dont think that will look very good if that thing is showing other than that it would look good. Any thoughts or ideas? Any at all would be good. Or can i make a set is that possible? If so how do i makea set? I need some help guys anybody.

I may be wrong but aren't tractor-trailer tails about 4" in diameter?

Their led to

call AVS in Fresno, CA (559)486-5444. If they don't have what you need they can make it! I know they have a few styles of round lights avail. though.

not sure if they seperate from the peices but they are decent round taillights

watsons-streetworks.com

Take a look at the ones I had on my fullsize.

Http://www.streetsourcemag.com/Profile.aspx?ProfileID=9810

I found those at Pep Boys...

would these work, possibly with a small weld in steel bucket you could form around the diameter with some thin sheetmetal?

http://www.streetsourcemag.com/uploads/Ownerprofiles/kleerance/672004114433AM83811.jpg

truck stop has em and they are l.e.d.s

vw bug taillights are pretty cool looking and you don't see em every where