SHOPower.com Club Stickers
They go in the rear quarterpanel window, has glue on the back, and measures 12 x 2,5cm - guaranteed fit on a 92-95 SHO. The more tint you have, the more visible it becomes. The text is pure white, with transparent background, so it should even look cool betwen window and window tint. 45 pairs of stickers are spread around on SHOs in Ontario per Jan 2004. They are made by Auto Trim Design located in Concord, ON.
Price is $9 CAD for 2 stickers (price includes shipping and handling within Canada)