Hi,
Here is my another project:

White indicators from Opel Kadett E (brand new, 4£ for both - left and right side), tube of glue (1.5£), bolts (20 pence), some plastic chunks and black spray (free).

Now that's a cheap way of doing it, and the result looks very original

does it fit in place?Isn't it moving ?

It fits almost perfectly, but becouse of use bolts instead screws, you must experiment with distance form headlight (in practice it's reduce to find suitable place for one 'distance' nut and then screw all with second nut).

The Opel Kadette E is a Mk2 Vauxhall Astra by the way lads.

Nice conversion!!