Here's my boots after darkening the center stripe:
[ATTACH]58501[/ATTACH]
And my viewfinder prism after more sanding. Still not sure if it needs grooves in the back (top).
[ATTACH]58500[/ATTACH]
[ATTACH=full]58499[/ATTACH]
[ATTACH=full]58500[/ATTACH]
[ATTACH=full]58501[/ATTACH]