If you're in the market for a custom guitar strap, take my advice and avoid "Scoop Straps". After sending him my money, it got to the point where I had to threaten to file a complaint on him with the Internet Crime Complaint Center in order to get him to ship it.

And the strap? The custom design that he engraved on the strap only somewhat, at best, resembles the photograph that I sent him. (A simple shape; it was supposed to match my custom fretboard markers.)

Just trying to help others avoid the same headaches I went through.
Couch Guitar Straps in Long Beach.

They don't do custom http//www.couchguitarstraps.com , but they do have lots of limited-edition runs of straps including silkscreened stuff and stuff with vintage deadstock vinyl: