Bumper "rubbing strips" - make like new?

[PeteE30Tourer]

What i'd call the rubbing strips - the 2" high rubber or plastic inserts that go round the standard front and rear bumpers (probably only on the face lift cars?) are all scuffed on my Tourer.

I knew GSF sold them, but on phoning today i found out that they'd recently sold off their remaining stock for silly money (circa Ԛ£8 each!) and now they're not getting any more in. Bummer! BMW want an arm, two legs and the contents of my b0ll0x for a complete set (<Ԛ£100!), which i refuse to pay on principle. (Though the receptionist could perhaps have...... no, sorry, i'm a happily married man!)

So, it got me thinking. I had an rubber bumber MGB GT many years ago and someone tipped me off that a lot of rubbing with fine wet & dry followed by a good polish would eventually bring them back to as new condition. It worked fine on the B too, but has anyone tried this on the E30 strips? I dont want to risk trying it only to find out i make matters worse.

Perhaps there are other alternatives to mask the usual white scuff marks that our friendly members could share?

[gazza]

i bought one 2 weeks ago at gsf in apsley(hemel hempstead) at the time they had 2 front left after i got mine in stock. mine cost 8 quid i ordered 2 but only took 1 in the end ...might be worth a try there number is in the gsf catalogue both were front ones a left and a right