Here's a site:

http://www.honda-s2000.de/02forum.html

Click on "Shop" at the top. They're in there somewhere.

 

Here is the link to IN-PRO in Germany

 

Well, since other's posted it I will just say that, yes In-Pro as shown above. Their order link is broken, and the first e-mail I sent to the person listed as "president" bounced back as undeliverable. The second guy said, sure we have them, just send me the money. I was a little leery as to wether they were still in business. That's why I did not want to post yet. It has been over two weeks since I ordered with no update, so I e-mailed them yesterday. They promised that they would be shipping out today. I'll keep you all posted.

edit: It is not the inPro one's I ordered it is the ones from honda-s2000.de as shown earlier. Sorry for the confusion.

 

I purchased the clear In Pro side markers on an eBay auction. They fasten to the car differently than the Honda JDM (clear) and USDM (amber) ones, using a metal clip at the opposite end of the unit. I found that the metal clip did not allow the installed unit to sit snugly against the car -- it actually stuck out a bit on one end, which I didn't like. Tried to adjust the metal clip, but couldn't get it to fit against the surface. I ended up buying the JDM clears from Rick, and they fit fine. Just watch out for this fitment issue with the In Pro smoked side markers.

 

I just emailed Josh at pp@circulus.de, he said just paypal him the $42 there, and I got my inpro markers fine about a week later. One of the spring clips was funky (too bent to provide pressure), but after attempting to bend it & breaking it, I extended its height with foam weatherstripping and the markers are reasonably snug.