Wiper arm pivot caps
These are the small plastic mouldings (A082M6380F) that covers the bottom of the wiper arm and helps protect the wiper arm pivot nut. Although someone reported some time ago that they were no longer available, they appear to be back on the dealer's lists but cost ~£12 each. Nevertheless, I (Geoff 26 Oct 2011) have picked up a Rover part for £1.20 and a pair of Landrover parts for £7.25 and US suppliers list them at $5.95.
Jaguar XJ220 - you don't believe me? Take a closer look!
Rover 200/400 Coupe / Cabriolet & 400 Tourer (Rear wiper)
Rover 800 series
Similar model Hondas but Honda part number is unknown
Landrover Discovery Mk I
Landrover Rangerover [P38] (1995-2002)
Lotus Elise / Exige / 340 / Europa
Proven alternative sources are:
Rover part number DCP 4918
Landrover part number PRC 8253
Possible US source: