PerryL, sweet guitar! Me like.
ripsrv, I think you got a lot of negativity because the way you made your observation about the types of guitars you've seen on this board. It sounded more like a criticism of those styles of guitars. Yes, there are a lot of pics and sketches of pointy guitars. I've called PG the cult of quilted maple. There are lots of Jems and a few thru-neck with contrasting laminations. You don't need to be a fan of every style to appreciate the creativity and craftsmanship that goes into the guitars. I was never into metal, so, a lot of the metal oriented guitars don't do it for me. My taste tends to run towards vintage and oddball.
Tradition is such a strong element in Blues... Strats, Teles, Les Pauls, Gibson semi-hollows, Gretsch. You really can't stray too far from convention. That kind of constrains innovation and uniqueness. But, there's a tradition of blues players making do with cheap instruments. Makers of cheap guitars have made a delirious array of oddly proportioned knock-offs and strange takes. There's a really cool site of Euro guitars (Ekos, Hagstroms, Vox, etc), www.fetishguitars.com.
If you haven't, you really need to check out Girl Brand Guitars to see what cool variations you can do with the humble Telecaster.
You mentioned the Jagstang. Tym Guitars does a take on the Jagstang that's recognizable, but, clearly different: the Vibratone.
For fresh, but, vintage flavored, check out Koll Glides, Reverend Guitars, and the Pagelli Beatmaster and Rockability.
A guitar I really, really like is S.B. MacDonald's resolectric. I like the way it looks like it's been hacked out of another guitar. I know you weren't looking for a resonator, but, it would make a cool blues guitar. A bridge p/u could be mounted on the coverplate.
Also think of an anonymous looking single cutaway (clearly not a Les Paul) along the lines of a Gretsch Duo Jet, a National Resolectric, or a Danelectro U-2. Get weird with the pickguard to make it completely unique.